Onyx Performance - Rolling Road Tuning

Onyx Performance - Rolling Road Tuning We are an ECU Remapping Specialist and Tuning house offering a 4WD Dyno Tuning Service in Slough.

BENTLEY CONTINENTAL GT V8 — FULL WORKSHOP REFRESHThis Bentley Continental GT V8 is in with us for a full gearbox service...
24/08/2026

BENTLEY CONTINENTAL GT V8 — FULL WORKSHOP REFRESH

This Bentley Continental GT V8 is in with us for a full gearbox service, major engine service and comprehensive vehicle health check.

We’re giving this GT the attention it deserves, carrying out essential maintenance and checking the vehicle over thoroughly to ensure everything is running as it should.

Proper maintenance. Proper performance. Properly looked after.

📞 01753 439321

M4 in for a Major Service 🔧OEM equivalent parts used, full inspection and diagnostic carried out, with the iDrive servic...
13/08/2026

M4 in for a Major Service 🔧

OEM equivalent parts used, full inspection and diagnostic carried out, with the iDrive service history updated.

Get your M car service booked today with prices starting at just £200!

Servicing, tuning and performance upgrades available at ONYX Performance.

DM us to book in.

BMWService BMWTuning ModifiedBMW BMWUK PerformanceCars M4Competition CarServicing

23/07/2026

Transform the Look of Your Vehicle with Professionally Refurbished Alloy Wheels 🛞🔥

Scuffed, scratched, or kerbed alloys can take away from the appearance and value of your vehicle. Our expert alloy wheel refurbishment service restores your wheels to a high-quality finish, leaving them looking like new.

🎉 For a Limited Time – Enjoy 10% OFF All Alloy Wheel Refurbishments

✔️ Professional finish
✔️ Fast turnaround
✔️ Competitive pricing
✔️ High-quality workmanship

📩 DM us today for a free quotation or to book your vehicle. Give your car the finish it deserves.

20/07/2026

BMW 540i in for our Stage 1 performance package. 🔥

Before tuning, we carried out a full maintenance service to make sure the car was in top condition. This included:
✅ Engine oil & filter
✅ Air and cabin filters
✅ Gearbox service
✅ New spark plugs

Once everything was dialled in, we completed our custom Stage 1 remap, bringing the car back to life with a significant increase in power, sharper throttle response, and a much more exciting driving experience.

Another happy customer and another BMW transformed. 💪

The Audi RS7 is in for a full Stage 2 package! 🔥 This one is about to be transformed with more power, performance, and s...
20/07/2026

The Audi RS7 is in for a full Stage 2 package! 🔥 This one is about to be transformed with more power, performance, and sound.

Make sure you’re following us so you don’t miss the full build and reveal video coming soon. 👀🏁

16/07/2026

BMW 540I GETTING READY TO BE TUNED 🔥

13/07/2026

Mercedes-AMG C43 AMG is on the dyno today for a custom tuning session.

Precision calibration, optimised performance, and unlocking every bit of potential built for drivers who want more than factory settings.

Stay tuned for the power figures. 🔥💨

09/07/2026

Turbo failure? This van came in today after the turbo failed due to excessive back pressure caused by a blocked DPF.

We diagnosed the issue, sorted the DPF problem, and fitted a replacement turbo to get the van back on the road and running properly.

If your vehicle is showing signs of turbo problems: loss of power, smoke, unusual noises, or warning lights don’t leave it until it fails. Get in touch and we’ll diagnose the issue and get you sorted.

📩 Message us today to book your vehicle in.

VW Golf GTI in for a Stage 1 Tune & Carbon Steering Wheel Upgrade! 🔥Another GTI transformed with a Stage 1 remap and a s...
07/07/2026

VW Golf GTI in for a Stage 1 Tune & Carbon Steering Wheel Upgrade! 🔥

Another GTI transformed with a Stage 1 remap and a stunning carbon fibre steering wheel for improved performance and a premium interior finish. 💨⚡

Looking to unlock more power from your car? Whether you’re after a Stage 1, Stage 2, or Stage 3 build, we’ve got you covered.

We offer a wide range of performance upgrades and modifications for the majority of cars on the road.

📩 DM us today to discuss your build and get a quote!

29/06/2026

AUDI RS3 STAGE 2 🔥

Ready to transform your RS3?

DM us today to book your tune.

Address

Slough
SL37EW

Opening Hours

Monday 10am - 6pm

Telephone

+441753439321

Website

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