Ford Focus RS Mk3 Tuning

Everything you need to make your Focus RS Mk3 faster, handle better and turn more heads.

Ford Focus RS Mk3 Tuning

Everything you need to make your Focus RS Mk3 faster, handle better and turn more heads.

The heritage and experience to realise your vision

Focus RS MK3 Tuning


Tell us your goals and our expert team will help you to plan how to get there. We have over 40 years of motorsport heritage. We know fast cars! Read about our planning service.


From turbos to bodykits, our expert team of engineers are here to help. Introducing ‘The Doctor’! View our team.

Buy Online

You’ll find a wealth of Focus RS products at our online store. If you don’t find what you’re looking for, give us a call. Visit the AET Motorsport online store.


We’ve taken the Focus RS engine right the way up to 400bhp, without over stressing the engine or the custom hybrid turbo we install. The car can still achieve 45 mpg (if you can manage to keep your foot off the loud pedal).


If you are looking to go fast or looking for the perfect stance, We can offer springs or fully adjustable coilovers, advice guidance and fitting service.


Looking to turn heads? You have come to the right place we can offer you some of the best cosmetic products on the market.

Need help with your Focus RS Mk3? We're ready to help...

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The AET Motorsport Dyno

When in the search for more power a dyno is the best way to gather extensive data, Here at AET Motorsport we have a bespoke dyno cell housing a Dyna Pack hub dyno capable of 2wd and 4wd vehicle capable of handling up to 2000 bhp

Read more about our dyno

Drove over 4 hours to AET motorsport and back today and have to say it was worth it! It’s like a new car with the Peron Stage 2 fitted and my average MPG has gone through the roof somehow?
Milltek is silent on the motorway but sounds lovely on the overrun and when it’s revving. Great service and top quality products!

Jack Roberts

15th December 2016

From our motorsport blog

AET Motorsport | New PERON dealer

Were pleased to announce that RA Motorsport are now an approved PERON dealer supporting the north. The guys at RA Motorsport will be on hand to offer fitting, technical support, flash tuning and dyno services, whilst keeping the PERON and AET Motorsport tried, tested...

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AET Motorsport | Ford Focus ST 250 hybrid

David dropped his Ford Focus ST250 off for a PERON hybrid turbo installing. David forged the 2.0ltr Ecoboost engine on his Focus in preparation for the hybrid turbo installing and rectifying the weak bottom end often found on the ST250. With the hybrid turbo installed...

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AET Motorsport | VW Transporter

William dropped of his VW Transporter for an EGR blank and a DPR removal completing. Once we had completed the hardware we ran the vehicle up on the dyno where is produced 148whp and 267lbft showing an increase over a fully stock vehicle. Once the ECU has been removed...

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