Onyx Performance - Rolling Road Tuning, Dyno Runs, Car Service Centre & Alloy Diamond Cut Refurbishment Auto Repair in Slough

Reviews

1. Danielbd100 ★★★★★

   Had a great experience at Onyx. Both Ben and Max have walked me through the process of remapping my modified car and the cars gains speak for themselves. Everyone there was friendly, enthusiastic and committed to help you reach your goals while also being completely honest. They treat your car as if it’s their own so you know you’re in safe hands. The transparency was excellent and very comforting which is rare especially in the trade of tuning. It was a pleasure having my car tuned with you guys and I’ll be back soon with my other car. I’m writing this several months after having the tune done and the car is still better than ever.

   almost 7 months ago
2. Stewart Morgan ★★★★★

   All I can say is fantastic service from Ben and the team at Onxy Performance last Saturday 10th November. Had a great day from start to finish with my RS6 C8 stage 1 tune and gearbox upgrade. Welcomed by Ben on arrival and his team, I felt reassured that I was in safe hands. They explained the process and asked if I had any questions. That was when I new I made the right decision to use Onxy Performance. Well happy with the results and how professional these guy's are. Outstanding service. Thanks again all at Onxy Performance

   almost 8 months ago
3. S A ★★★★★

   Me and a mate went down to Onyx Performance in Slough to get our cars done — I had a Stage 1 on my BMW and he went for Stage 2 on his Audi. From the start the boys were great on the phone, really helpful explaining what each option meant and what we’d get out of it. When we showed up, Ehsaan took the time to show me his setup and talk me through everything. He was friendly, knowledgeable and made sure we were clear on what was happening. He also helped customise things to exactly what we wanted — i kept it simple. My friend was after alot more finished off with some aggressive noise, and that’s exactly what we got. Both Ehsaan and Fahim were brilliant on the day, proper sound boys who know their stuff. These guys also do mechanicals, add-ons and alloy works, and the whole setup is tidy and professional. Only downside is I wish they were closer to me, but honestly I’d recommend anyone thinking about a remap or any work like this to give them a shout — you’ll be in good hands.

   almost 9 months ago

1. Robert Shihata ★★★★★

   The lads especially James and Ben done a stellar job on my Tiguan R fitting a Maxton body kit. Quick, clean and professional. They are now my go to people for all things automotive. Next step will be ECU remapping and a dyno run! Can’t wait!

   almost 9 months ago
2. Paul Hampton ★★★★★

   Took my 911 to Onyx to have the springs changed for a set of 20mm lowered Eibachs. Really friendly service, a nice clean unit and Ben kept me fully up to date on everything going on. Received the car back and although the job took a lot longer than they thought, they only charged me a bit more. Still a very good price compared to what independent Porsche garages wanted, and the Onyx facility looked a lot better than most of those too. Really pleased with how the car looks now, and the handing/ride hasn't been adversely affected - it really feels planted to the road now. While I was there I couldn't resist a run on the dyno, something I've not done for many years! Definitely a lot of fun, and nice to get a graph to put with the folder of my car, along with the videos of it on the rollers. If you have a performance car definitely do this if you are local. All in all, a great bunch of lads with a nice business/facility going, and I'm sure I'll be back at some point. Thanks!

   1 year ago
3. Nathan ★★★★★

   Not sure where I even begin, firstly they answer the phone when you call which is always important. I explained my issues and though my car is heavily modified not by them they were honest as whether they thought they could help with diagnosing the issue with my car. The garage is clean and professional. Most importantly the service was A1, I dealt with SN who was being as helpful as possible though their equipment may had not worked with my modifications. After a few changes to my car the equipment would fit nicely and allowed them to carry out the test. I would not hesitate taking my car back to Onyx Performance should I need to. Also bring 7 minutes from my home they are now the most local garage I’d considered that could help me in the future with my cars modified or not

   almost 3 years ago

1. Tauseef Mughal ★★★★★

   I don’t usually write reviews, but had to make an exception. Excellent service from the start. The guys at Onyx Performance clearly know what they are talking about and are very passionate about what they do. They are happy to share their opinions when asked for advice, based on their experience, but are never forceful on pushing an idea on you. Can’t recommend these guys enough. All I can say is that I trust these guys with my car more than I trust my dealership.

   almost 3 years ago
2. Ragunath Sharma ★★★★★

   Took my m135i into onyx performance yesterday to get a stage 1 Custom Dyno Remap along with getting the gearbox mapped too. Achieved fantastic results, completely transformed car an absolute beast now. Major improvements. Can't recommend these guys enough . Know exactly what they are doing,very helpful and knowledgeable. 5/5

   almost 3 years ago
3. Connor Fitzgerald ★★★★★

   Amazing service from start to finish! I had a downpipe fitted and a remap, I am so happy with the results it feels like a different car! Onyx tuning are reasonably priced and offer great results, I highly recommend. Couldn’t be happier

   almost 3 years ago

1. Oh Shahz ★★★★★

   Superb service, Dyno was great, friendly staff. Got along with everyone and got some amazing videos and shots of the car. Would definitely recommend to Anyone looking for good service and a pleasant experience.

   almost 3 years ago

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