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 Mark Wiltshire 
 
 
 
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Professional yet friendly, very helpful would recommend 👍
  
 
  
 
 
 
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 Paul Forrester 
 
 
 
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Nice refurbishment of my alloys
  
 
  
 
 
 
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 Noel Kerins 
 
 
 
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Excellent service, great quality job on 2 of my black alloys. They also did my father & husbands cars too. Great value for money and a special thanks to Ben.
  
 
  
 
 
 
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 Jamie Taylor 
 
 
 
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Had my golf R mapped and tuned to stage 2 very impressed with the work they done Ben and Sam great guys very friendly and very professional would recommend 👍🏻
  
 
  
 
 
 
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 DSK 
 
 
 
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Brought my Audi S3 in for a Stage 3 tune with a bigger turbo and full supporting mods. Things didn’t start smoothly — the Falcon turbo I had fitted from eBay turned out to be faulty and smoked heavily on the dyno.Instead of rushing the job or giving me attitude, they helped me swap it out for a proper Garrett PowerMax and carried on professionally. Then I ran into fueling problems caused by another low‑quality eBay part, and again they took their time, diagnosed the issue properly, fixed it, and made sure everything was right before continuing.After all the setbacks, they still mapped the car, spent a lot of time on it, and didn’t charge me anywhere near what the work was worth.They showed patience, honesty, and real skill. Very happy with the service and the way they looked after me.
  
 
  
 
 
 
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 randip 
 
 
 
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Highly recommended. Fitted my catless downpipe and full exhaust on my Audi RS7. The sound is amazing! The staff were very friendly and kept me updated at every step of the process
  
 
  
 
 
 
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 Dan Simmonds 
 
 
 
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This is the second time I have used Onyx Performance first time for wheel refurbishment and last time for remap and i would use their services again in the future without a doubt. They are very knowledgeable about what they specialise in, they are polite and you can see they care not only about what their customers want to do but also about what they can offer the customer. Thanks to the OP team.
  
 
  
 
 
 
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 Taranjit Lehal 
 
 
 
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Took my Mercedes C200 to Onyx performance for a stage 1 remap, my car is much quicker and throttle response is much better than before the remap. They also advise you about power and gains and the maps are tailored for your specific car and model, no stress on engine or gearbox. Thank Onyx , Brilliant work.
  
 
  
 
 
 
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 Carlos fernandez 
 
 
 
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Absolutely fantastic service friendly customer service will definitely be going back for further modifications 5 star service do not go anywhere else other than onyx😎🙏🏼
  
 
  
 
 
 
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 Aurimas Gercas 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Great service, recommend.