The Company and the People

Subaru Engine Australia is a division of All-drive-Subaroo (ADS™). ADS™ started as Metro Speed and Sound, (MSS) specialising in performance modifications and rebuilds, owned by Niazi Helou. MSS evolved into a purely mechanical workshop, renamed Metro Mechanical, was quickly outgrew its modest facilities in Lugarno as it became oriented more and more towards Subaru service and repairs. Niazi’s engineering interest was turning towards gearbox and engine remanufacturing, and he had a number of ideas to improve the Subaru OEM products. The result was All Drive Subaroo, which grew rapidly and divided into four divisions: Subaru Engine Australia, Subaru Gearbox Australia, Subaru Parts, and Subaru Service. ADS™ now employs 18 full time staff, in the workshop, factory and admin areas. The company is unique in that everyone working full time at the Peakhurst facility, including those manning the phones, is a fully trained and experienced Auto Tech. For the customer, this means good advice when it’s needed and the right answers.

Remanufacturing and redesign

Subaru Engine Australia provides a wide selection of Subaru turbo and non-turbo model engines at three levels of rebuild, and in five configurations, short, long bare, long dressed and turnkey or “crate” engine. We have up to 50 exchange engines on the shelf ready for despatch daily. Our reconditioned and remanufactured engines incorporate revised pistons, rings and head gaskets to address inherent weaknsses in the factory engines. . Subaru Engine Australia’s motto is research, revise, enhance.

Parts and Support

As well as service, repair, and remanufacture we are also Australia’s largest independent Subaru parts supplier with new and used engine parts in stock for all models. So whether you are a DIY mechanic looking to build or repair your own engine or a mechanical workshop looking for competitively priced high quality OEM or after market parts, Subaru Engine Australia has got you covered. We also offer full time technical support from our team of engine specialists to assist you through every stage of your project.

Do you own a Mechanical Workshop?

Our trade links have expanded nationally with interstate fitment stations to provide full remove-repair-and refit services to trade customers not confident in carrying out repairs to Subaru cars. Fitting stations are chosen carefully to meet our business objectives and values. If you are a Sydney Metro based business we can provide direct free pickup and delivery service.

42 Stanley St, Peakhurst, NSW 2210 Australia

Admin & Accounts –

Sales & Technical –

Subaru Engine Assemblies, from Standard to High Performance

Building a Reliable Standard Subaru Engine

For the day-to-day driver we have in stock a range of replacement standard engines on an exchange basis at three build levels, rebuilt, reconditioned and remanufactured. Across the industry there is a wide variety of replacement engines on offer and the quality varies enormously. At ADS we have worked long and hard to develop a remanufacturing technique that produces engines that are of consistent high quality, and that address known weaknesses. The result is a remanufactured engine that is actually superior to the OEM original. We recognise also that customer needs vary, so we also offer two lower levels of engine rebuild that are also of consistent quality. Each level comes with a different warranty depending on the process employed. Subaru Engine Australia’s guarantees are all nationwide.

Check out our different engine processes and warranties for turbo and non-turbo models

  • Level one engine warranty is limited to 6 months or 25 000km whichever comes first
  • Level two engine warranty is 12 months or 25 000km whichever comes first
  • Level three engine warranty is a massive 24 months or 50 000km whichever comes first, if the engine is installed by All Drive Subaroo

Building High Performance Subaru Engines

When comparing our high quality engines and warranties you will find that Subaru Engines Australia is very competitive, especially for our Cosworth performance range. With Cosworth components, and the knowledge and experience of Niazi and his team of specialist engine builders, ADS have produced engines that greatly exceed OEM specifications and will satisfy the demanding driver and the most extreme applications. Whether you’re a professional racing driver, or a keenly competitive enthusiast, our Cosworth engines can give you the edge. We can usually ship one of our high performance Cosworth engines within 5 days. We have four levels of performance engine available

ADS/Cosworth High Output Subaru Performance Engines:

These are much stronger and more reliable than the factory engine, and with the potential to support significant increases in power if desired. The ADS/Cosworth standard stroke Street Tuff engine is suitable for daily drivers who might want a stronger engine for robust reliability, or for an enthusiast who wants to tune his engine. Any performance boost will depend on the size and design of the turbo used, the ECU software configuration, and many other variables.

  • EJ20 Standard Stroke Cosworth Street Tuff Engine
  • EJ25 Standard Stroke Cosworth Street Tuff Engine

ADS/Cosworth Street/Strip Subaru Stroker Engines:

These are stroked engines with forged internals for increased strength and durability. The longer stroke gives more performance without further modifications, and with the potential to handle much more power. This is the perfect performance engine for customers that want the most on the street and at the track. This is the engine setup you need if you want to extract high RPM and maximum power.

  • EJ20 2.1L Stroker Cosworth Street and Strip Engine
  • EJ25 2.6L Stroker Cosworth Street and Strip Engine

New and Used Parts plus service

ADS has a large and very busy parts division, which means we have on hand at all times a large range of new engine parts. Because we are also an engine remanufacturing outlet, we also have a large stock of used parts from exchange engines. As well as greater choice than other parts outlets, we also have a team of engine specialists with in-depth knowledge of Subaru engines and peripherals. This means we can diagnose your Subaru’s problem, identify the parts you need and supply them quickly and efficiently. As we are a full-service company, we also offer follow up support and advice, for example, in fitting your new parts or assisting with any problems you might have after installation.


Some of the engine parts we have in stock include:

  • Engine blocks EJ255 and 257, EZ30 and EZ36
  • Subaru factory built short block assemblies
  • New high performance oil pumps
  • Multiple types of Subaru crankshafts
  • All model cylinder heads, reconditioned, exchange
  • Multiple types and brands of pistons
  • Camshafts, standard and performance
  • Standard Head bolts and head stud kits
  • Subaru Inlet and exhaust manifolds
  • Subaru Engine gasket and seal kits
  • Subaru Standard and performance engine bearings
  • Engine valves and springs

We are an official Cosworth stockist with many Cosworth parts including:

  • Cosworth forged pistons
  • Cosworth forged con rods
  • Cosworth crankshafts
  • Cosworth camshafts
  • Cosworth valves and springs
  • Cosworth cylinder head stud kits
  • Cosworth cylinder head assemblies
  • Cosworth cold air intake
  • Cosworth cylinder head gaskets
  • Cosworth engine bearings and rings
  • Cosworth standard stroke engines
  • Cosworth stroked engines
View our Online Parts Store

Why trust Subaru Engines (ADS) Australia?

Ethical Customer service

Be wary of dodgy engine shops offering reconditioned Subaru engines. Some don’t even list addresses or phone numbers, making it difficult to make warranty claims. All Drive Subaroo is a reputable, well-established business based on honesty, with Christian focused values and is recommended by many Subaru dealers Australia wide and hundreds of workshops. We’ll ask you the right questions and listen carefully to your needs to ensure you are delivered an engine that you can be proud of at a price that will make you smile!

Training and support

All our techs have been doing this for a long time, and have been specialist trained. They all take pride in the quality of their work, and love doing what they do. This ensures you will get the best engine human hands can build. All Drive Subaroo doesn’t just sell engines, we also offer technical support and assistance throughout the process and afterwards. Before you commit to an engine, we can talk you though all the available options. Once you’re back on the road, we are ready to assist with any questions you might have about the running and maintenance of your new engine.

Top quality parts

Many performance parts suppliers and engine builders around the world sell cheap, inferior products marketed as premium. It’s our aim to make sure that our products are the best available. In production too we aim to be the best. All Drive Subaroo don’t just put engines together like Lego blocks. We’ve carefully thought out all our setups, and spent hundreds of hours of building and testing to produce the optimum in performance potential and durability. Our Cosworth EJ20/25 Engine setups have gone through countless hours of dyno evaluation to determine the best combination of parts.

Warranty and technical support

We offer the best warranty terms in the business. We are able to do this because of the solid ethical principles we operate under, because we use only the highest quality OEM Subaru or aftermarket components, and because we’ve been doing this for a long time, and we are confident our products will not fail. Also, when you drive out with an All Drive Subaroo remanufactured engine, you have not only the best warranty in the business, but the best ongoing technical support. If you have any questions or problems with your Subaru engine, even if they are not related to the quality of the ADS product, we’ll be there to help.

Choices and Consequences

When you need a new engine, there are many choices. There are benefits and risks attached to each option. A used engine is the biggest risk. You might get an engine that is about to fail. With all the costs of purchase and installation, a big risk to take. A rebuilt engine is safer. Defective components are replaced with hand-picked used or new parts, all inspected and tested. A reconditioned engine has major components renewed, and comes with a good warranty. The remanufactured engine contains new and revised parts to produce better-than-new performance and longevity. These come with the best warranty, and virtually no risks.

ADS quality oversight

Some used engine blocks are in good shape and ready for rebuild. Others might have hard-to-see defects that make them unsuitable. ADS choose very carefully which engine blocks can be machined and which are for the bin. All remanufactured non-turbo engines are built with improved brand new redesigned engine cases providing the maximum possible reliability and longevity. All remanufactured engines contain a brand new hardened Subaru crankshaft and brand new connecting rods. All Subaru non-turbo EJ25 engines are built with our own revised multi-layer head gasket for durable sealing and ultimate long life.




Remember, the more specific details you can provide, the more accurate our response will be.


    Have an online chat with Niazi now

  • Start Chat

Call us any time and talk to Niazi on

(02) 9915-9900 or 0420 319 049

    what our clientS say about us

    Facebook Reviews
    Based on 69 reviews
    After our Forester engine blew up, we chose an ADS Level 3 remanufactured engine. Never has our car been so thoroughly inspected as ADS did. They sent photos of every part that needed to be repaired or replaced and we were amazed at the poor condition of some. Tomas and Robert gave us much advice along the way and communicated frequently to keep us fully updated re work and costs. We followed all their advice on what should be done and are extremely satisfied with the finished job - completed a week or so sooner than expected. We were most impressed with their factory when Robert took us through it. Two fills of fuel show the consumption to be 9.2 and 9.1/100km. We'll add a review in 12 months time and trust it will still be a glowing one.
    Thanks to all the ADS people for the great job done.
    Alex Mortensen
    Alex Mortensen
    After going through multiple performance garages having issues with aftermarket tunes, Gab at ADS was able to diagnose and isolate the mechanical faults that were contributing to a lot of my problems not picked up by previous mechanics/tuners. Car was given the full treatment and new tune and has never driven better! Thanks again to Gab for putting a smile back on my face when I’m behind the wheel of my Rex. Absolutely would recommend ADS to anyone.
    Matt Balyck
    Matt Balyck
    The guys at All Drive Subaroo were helpful with the selection of gearbox to suit my car and plans for it. The price was really good and the box was built for me in less than 2 days. They sourced Subaru genuine parts I needed and had all of it packaged up ready to pick up. Top quality work by top blokes. Thanks for helping me to get my car back on the road.
    level 3-Remanufactured SOHC engine assembly and reconditioned cylinder heads along with few other things for my daily liberty. got it back yesterday after a month at the workshop. happy with outcome. Great service and workmanship. Cheers ADS definitely recommend.
    Josese Nelson
    Josese Nelson
    The staff were terrific. Knew what I needed and could afford.

    Such a relief to be back on the road feeling secure that the Gearbox will do what it is supposed to do.

    thanks guys, and the mum who answered the phone sometimes.
    Peter Gooley
    Peter Gooley
    Big thanks to the guys at ADS, they saw me on short notice to prep my STI for a track day, sent me progress photos and kept me up to date regarding pick up. They go above and beyond, more so than your dealership or standard mechanic and make you feel really comfortable about leaving your car with them because of their attention to detail and quality work. Highly recommend!
    Recently we had to sort out what to do with our ageing Subaru MY 07 Liberty GT that we have loved for many years: repair or sell?
    A Subaru Service centre in our town, couldn’t help in our decision; it’s just getting old!!
    All Drive Subaroo in Peakhurst was our next stop. We ventured from 100 km away and were greeted by the best customer service person we’ve ever had to deal with in over 30 years.
    He was welcoming and courteous and promised to return the car that afternoon with an answer.
    We highly recommend that if you’re in Sydney,or elsewhere, and you have a Subaru, get it checked by All Drive
    That’s a slam-dunk: you’ll get the best service the best attitude and honest answers. Overall, a great experience.
    Chris I would like to thank you along with Issac and Niazi and all involved in getting my sons car back on the road for him.

    Unfortunately it was left up to myself to make arrangements to have his car repaired due to the long hours that he works and the stress that he felt he was under given the fact that he had only purchased the car in the last 3-4 weeks using all his savings to do so.

    I choose Alldrive Subaroo after doing some research online and reading all of the positive reviews.

    Being 53 I personally had no experience with these types of cars (I have added some photos of my cars to show how far my knowledge is with these WRX cars so you can understand)

    I can say that I was treated from the start to the finish like a VIP everything was explained to me in a manner that I could understand as well as all cost upfront.

    Its very rare these days to get the service that I received from every one that I spoke with along with pictures sent of the engine building process.

    All this gave me full confidence that you guys were doing the right thing by me knowing that I was six hours away lack of any knowledge and a father willing to do what ever was needed for his son.

    My son will be given strict instructions that his car is only to go to you guys for any maintenance/service needs that it may require

    Truly Thankful

    Robert Davidson
    Rob Davidson
    Rob Davidson
    The guys were incredibly knowledgeable, turned my situation around and brought my WRX back from the dead better than ever.
    talked about what i wanted and tailored it to suit, kept me up to date every step of the way.

    awesome upgrade, and awesome people.
    will be going straight back for future modifications
    Jordan Boulton
    Jordan Boulton
    Rang these guys today for some technical advice. I am in South Australia, so can't call into their workshop. Rob was extremely helpful and took the time to talk me through some possible faults and steps I could take in diagnosing and repairing my sons Forester. Genuinely helpful and know their Subaru's. Will be calling again if I need the parts to repair. Thanks Rob.
    Michael Thomson
    Michael Thomson
    Very professional and enthusiastic.
    Niazi really knew his stuff , great to deal with and got me back on the road ASAP 👍👍🙏🙏
    Nick Frazier
    Nick Frazier
    Cost, transparency and expertise!
    Let me tell you something about these guys , my car went into them 2 months ago , towed it to all drive subaroo coming from another mechanic who have failed my engine badly , these guys put their dedication and time into my car , they cared and did all they can , thabk god for these guys , my car has now been returned home in perfect condition , thank you so much to every single one of yous who did all for my suby , appreciate it 😍😍
    Just wanted to express my gratitude and big thanks to Gab from All Drive Subaroo. Upon having to pull over to the side of road due to engine acting up and not knowing the problem whilst waiting for a tow truck. Gab pulled over to offer his help, I was surprised by his kindness to offer on helping. After diagnosising the problem and temporarily fixing it, I was very appreciative of his dedication to help others in need and expertise. Again, thank you for your help tonight Gab. Would recommend All Drive Subaroo roo for all other fellow subie owners!
    Peter Nguyen
    Peter Nguyen
    Great service and advice from Chris and Robert at ADS. Very competitive pricing and excellent workshop.
    Benjamin Go
    Benjamin Go
    I called up for advice having just bought my first Subaru, a clean white 04 liberty sedan 3.0SpecB six speed manual, (pre facelift, non-centre diff control) and had questions about the viscous coupling and gearbox, and the amazingly helpful bloke on the phone couldn't have explained it better or more simply, aftermarket LSD's, their own uprated viscous couplers, how to test the viscous coupler (by jacking one wheel and trying to move it, smooth resistance is what you want).
    What more could you ask for?
    I'm looking for more advice having just bought a 2.5 '04 wagon 5spd with low range, as a replacement for the sedan whose nose was broken, whacked by a young girl texting and driving her Mazda.
    I'll eventually give All Drive Subaroo some money for their services, gladly.
    Five stars 🌟 🌟 🌟 🌟 🌟
    Adam Blakeley
    Adam Blakeley
    I got my 2016 WRX serviced here and I couldn’t be happier. Their customer service and professionalism is second to none.They even steam cleaned my engine bay. I will never go back to a dealership again
    A+. Thanks Guys love your work
    Steven Glyntzos
    Steven Glyntzos
    Fantastic to Deal with. They know the product. Amazing
    I had planned a track day with my GC8 WRX STI on Sunday, so took it for a quick drive around the block on Saturday to make sure it was running ok. 5mins into driving it wouldn’t rev cleanly over 3000rpm. I’ve had issues with this before and thought my Sunday Track Day was over unless I could find someone to fix it on a Saturday?? All Drive Subaru was open so limped the car out there where Isaac had a look over it for me. After diagnosing what could be wrong he systematically looked at about 3-4 issues which was causing the car to do this which he explained to me as he went through them. This took 2.5hrs which was 2.5hrs after he was meant to finish his shift and leave but stayed because he wanted to find the solution to get my car running so I could get to the Track Day on Sunday. Needless to say after 2.5hrs of not rushing but fixing the problem and any associated problems which could have arisen on my Trackday the car ran perfectly. I went to leave & fix them up for the 2.5hrs Isaac had spent on my car and Niazi and Isaac said “Don’t worry it’s on us”!!! I would have been ready to pay anything for their effort and getting me to my Trackday the next day where apart from being disappointed I would have lost $300 not being there. I didn’t want to leave without paying for there service but they insisted.(I had never been there before). I’m actually blown away by a business that provides this type of customer service that is so genuine, honest and passionate. These guys are next level in knowledge, quality and honesty as a business and Subaru’s. I’m definitely a convert and will be using these guys for all my existing and future needs as I develop my STI.
    Jason Chan
    Jason Chan
    awesome service, accurate and helpful advice. Pricing was very competitive too.
    Paul Duce
    Paul Duce
    Motor gearbox and diffs all working well. 1500klms done. Could not be happier. Well worth the dollars spent. 10 deserts here I come
    John Dixon
    John Dixon
    Excellent service and competitive pricing
    Customer service n assistance is far beyond my expectations
    As a pensioner its full value for money
    Management n staff are friendly helpful n at times funny its like family thank you so much
    George Pieri _customer new
    Giordano Pieri
    Giordano Pieri
    Just bought my first Subaru late last year and absolutely stoked I decided to visit ADS.
    If you want something done right on your Subaru, this is the place you want to take it!

    Such a great team there who really love their Subarus and show that same love to their customers cars.
    They always spare the time to ensure you get exactly what you want....or better than you thought possible!
    Facebook Rating
    Based on 69 reviews
    Google Business Reviews
    Based on 364 reviews
    Excellent service, friendly staff.
    Sumesh Misra
    Sumesh Misra
    Listen I delt with Gabriel the expirence was first class new his stuff inside out he listened to me then come up with a plan further to that I received a quote and it was impressively sharp. Keep it up and thank u.
    Aaron Paul
    Aaron Paul
    If you want the best in everything, here is your absolute go-to Subaru workshop. I have all new diffs and transmission that have transformed my car into something more capable and durable than anything you will find in a showroom for any price, and my car does get tested in rough rural situations on a daily basis. Too many improvements to list here, but new engine is next. ADS workmanship is second to none.
    Ash Chaya
    Ash Chaya
    Ben Turner
    Ben Turner
    Prompt and informative service. Transparent upfront pricing. Much appreciated. Will use this company and recommend it.
    Stephen Wall
    Stephen Wall
    Donna Ly
    Donna Ly
    I made the leap from dealer Subaru servicing to ADS and won't be looking back. What a drastic change this was. From easy booking process to the servicing and to pick up, Robert is absolutely exceptional and the place is extremely friendly and professional. They really took great care in explaining the issues and the service process. The prices are fair and reasonable and I haven't had a Subaru service before where I have walked out already wanting to book the next one in. Car drives great now. Thanks again to Robert and the ADS team.
    Joseph Tizzone
    Joseph Tizzone
    Jon Fitzgerald
    Jon Fitzgerald
    DylanEdwards _
    DylanEdwards _
    I have known the ADS guys for a while now back when they started at Lugarno. They have looked after my car since I first went to them in 2003, ADS have spent a lot of time on my car, and the attention to detail is phenomenal.I have become great friends with Niazi, Gab, Rob, and the entire team at ADS, I wouldn't take my Subaru anywhere else. Amazing customer service, always go above and beyond for their customers 😀 I highly recommend this work shop.
    Daniel Evans
    Daniel Evans
    Took the time to answer my call and my questions gave me a very comprehensive quote. Love the work they do. Thank you
    Mark Twain
    Mark Twain
    Friendly service and staff
    Kane Belcastro
    Kane Belcastro
    Always straight onto sourcing a part i need for my subaru and i normally have it in my hands withing a couple of days. Awesome service, polite staff and a wealth of information.
    Will Davis
    Will Davis
    Rob was very quick to get back to me, and took the time to understand how best to help, then helped find a solution. Excellent service, thank you.
    Nathan Jeffs
    Nathan Jeffs
    *Updated again* OK I take it all back. These guys are amazing. Fixed a whole range of things I’d never mentioned and gave them to me for free. Legends. Will definitely be back *Updated*The team reached out to offer to stay back and get my car fixed. Unfortunately by this time I was unavailable. By all other reviews, looks like these guys are usually amazing. Would recommend them, as they reached out to stay back after hours just to get the job done. I also walked in without a booking, so to be that upset they couldn’t fit me in is ridiculous. (Original review)FURIOUS!! Went in to see if I could get the bushes fixed on my car and was told I was ‘lucky’ as they don’t usually have any time but they did today. Told me to come back in an hour, but they’d call me to let me know exactly when. I put off doing other things as I was expecting to go back in an hour or so. Called an hour and a half after the initial time, was told they’d call me just after lunch. Waited an hour after lunch, called back to be told they’d call me when they had a hoist available. Thinking that I’d get my car in there I put off doing other tasks as I wanted to be available. Called back at 430 - 7 hours after I’d initially been told to come back in an hour - to be told they wouldn’t be able to fit me in today. Thanks for wasting my only day off with your incompetence. Left in the morning full of joy, what a good service I thought, sadly not. Won’t be going back or recommending unfortunately
    Tomas has been very helpful with advice and service
    Jason Currie
    Jason Currie
    Amazing customer service and very knowledgeable about Subaru transmissions. High recommend!
    fter our Forester engine blew up, we chose an ADS Level 3 remanufactured engine. Never has our car been so thoroughly inspected as ADS did. They sent photos of every part that needed to be repaired or replaced and we were amazed at the poor condition of some. Tomas and Robert gave us much advice along the way and communicated frequently to keep us fully updated re work and costs. We followed all their advice on what should be done and are extremely satisfied with the finished job - completed a week or so sooner than expected. We were most impressed with their factory when Robert took us through it. Two fills of fuel show the consumption to be 9.2 and 9.1/100km. We'll add a review in 12 months time and trust it will still be a glowing one.Thanks to all the ADS people for the great job done.
    Alex Mortensen
    Alex Mortensen
    Very impressed with their service and support
    Matt Thom
    Matt Thom
    Called in regards to my 2013 brz making a sound and wanted to get the car checked as multiple mechanics wanted to charge me an absurd amount to have the engine removed, I spoke to the owner who was the absolute sweetest man ever, he went through the Subaru brz recall that they were having with me and explained to me how to call them and what to ask for to have my car checked by the dealership instead of him scamming me for no reason when the dealership had a recall on the exact issue for free ,, great customer service, great explanations and was very happy with the final result soo props to you guys 👏👏
    Fathallah Rana
    Fathallah Rana
    After going through multiple performance garages having issues with aftermarket tunes, Gab at ADS was able to diagnose and isolate the mechanical faults that were contributing to a lot of my problems not picked up by previous mechanics/tuners. Car was given the full treatment and new tune and has never driven better! Thanks again to Gab for putting a smile back on my face when I’m behind the wheel of my Rex. Absolutely would recommend ADS to anyone.
    Matthew Balyck
    Matthew Balyck
    All personnel helpful and really know their Subarus ✨Will always recommend their professional service
    Google Rating
    Based on 364 reviews


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    Budget constraints
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