Aston Martin Engine Modifications, Performance Upgrades

Aston Martin Engine Modifications, Performance Upgrades & Exhaust Tuning in Langley, Slough

Aston Martin Performance Upgrade in Slough

Experience the true potential of your Aston Martin with our specialist engine modification, performance upgrade, and exhaust tuning services in Langley, Slough. We combine precision engineering, advanced technology, and a passion for performance to enhance power, responsiveness, and driving excitement while maintaining the elegance and refinement your Aston Martin is known for.

Our upgrades include custom ECU remapping, high-flow intake systems, performance exhaust fabrication, turbo and supercharger enhancements, and bespoke engine component fitting. Every modification is tailored to your model – whether you drive a Vantage, DB11, DBS Superleggera, or classic DB model – ensuring optimal results without compromising reliability or luxury.

With a reputation for meticulous craftsmanship and attention to detail, we attract Aston Martin owners from across Slough and the wider UK. Our team understands the unique character of each model, delivering upgrades that elevate performance while preserving the iconic Aston Martin driving feel.

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Why Choose Onyx Performance?

As Seen on Carwow

We’ve been proudly featured on Carwow – a testament to the quality, professionalism, and performance-focused results that set us apart. Watch our feature here to see us in action.

Expertise You Can Trust

With years of experience and deep technical knowledge, our team understands performance vehicles inside and out – from custom remaps to high-end servicing.

Advanced Workshop & Tools

We operate from a state-of-the-art facility in Slough, equipped with cutting-edge diagnostics, dyno testing, and industry-leading tools for accurate, high-quality work.

Tailored Solutions for Every Vehicle

We don’t believe in one-size-fits-all. Every car gets a bespoke approach, ensuring the best results whether it’s a remap, upgrade, or routine service.

Trusted Nationwide

Performance enthusiasts from across the UK come to Onyx because they know they’ll receive premium-quality workmanship, careful attention to detail, and honest advice.

Complete Care, All in One Place

From tuning and servicing to tyres, trackers, and immobilisers – we offer a full suite of services under one roof, all with a strong focus on safety, reliability, and top-tier customer support.

Customer Reviews

    
 
 
       Posted on Google  
   
   Anil Soni 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you guys for your professional, dedicated and honest opinion. You made my day by fixing my son's car so he could use it for DoE at very short notice. Max and Kay were brilliant and I would definitely recommend this garage as a organised and trustworthy business. Keep up the good work.
  
 
      Posted on Google  
   
   subin pradhan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Took my BMW 440i to install downpipe and mid pipe. Top guys with good service and reasonable price. Will be going back for more work done.
  
 
      Posted on Google  
   
   J JareCki 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just done Stage1 in my audi s3, car drive superb, excelent service, thanks Ben,Sam and Onyx team! Brilliant work
  
 
      Posted on Google  
   
   Dan May 
 
 
 
 Trustindex verifies that the original source of the review is Google. Honest and knowledgable! Rare these days - saves me hundreds by checking my Golf R properly. Will only use these guys from now on
  
 
      Posted on Google  
   
   Darren Dawes 
 
 
 
 Trustindex verifies that the original source of the review is Google. I took my jaguar xfr to these guys for a re map . Excellent service. They could not have been more helpful. Very knowledgeable they definitely know what they are doing. If your looking for a re map I would highly recommend you speak to them.
  
 
      Posted on Google  
   
   Hana 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was recommended Onyx to get my diamond-cut alloys refurbished. I am located an hour away but the recommendation was important so decided to leave my car with these guys. First impressions, the team were very polite, friendly (Essan, Ben and the guys that actually did the refurb in the intense heat) The prices were competitive. And the quality of work was super. There was slight miscommunication post the sale (which happens) but I was pleased they resolved this to my satisfaction. One idea I would suggest is advising the customer 'before' the work starts that the TPF valves may need replacing so we have the option to decide whether to do it whilst the wheels are off anyway rather than post refurb to avoid scratching the newly done alloys. Otherwise happy with my overall experience.
  
 
      Posted on Google  
   
   Mark 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service
  
 
      Posted on Google  
   
   pavan khangura 
 
 
 
 Trustindex verifies that the original source of the review is Google. The best experience ever well organised clean friendly team and the experience was amazing A big up to the whole staff.

Book Your Aston Martin Performance Upgrade in Slough

Enhance your Aston Martin’s power, sound, and responsiveness with expert engine modifications and exhaust tuning at our Langley, Slough workshop. From custom ECU remapping to bespoke exhaust systems and performance components, we deliver upgrades designed to thrill. Contact us today to discuss your vision.

5-Star Google Reviews

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Why Choose Onyx Performance for Servicing?

Experts in Performance Cars

We know how to properly care for performance, modified, and luxury vehicles. Our team has the skills and experience to handle specialist requirements confidently.

Correct Service Schedules

Every service follows the exact schedule recommended by your vehicle’s manufacturer, helping maintain performance and protect your warranty.

Quality or OEM Parts

We only use high-quality aftermarket or original manufacturer parts, ensuring long-lasting reliability and top-level performance.

Full Vehicle Inspection

Our service goes beyond just changing oil. We inspect all key systems to keep your car safe, smooth, and road-ready.

Honest Advice, No Surprises

With transparent pricing and expert recommendations, you’ll always know what your car needs – no upselling, no hidden fees.

Fast, Trusted & Tracked

We offer quick turnaround, maintain service records, and send reminders – that’s why customers travel to us from across the UK.

Frequently Asked Questions

Do you work on all Aston Martin models?

Yes – from modern DB11, Vantage, and DBS models to classics, we provide upgrades for the full Aston Martin range.

Will modifications affect my car’s warranty?

It depends on the type of upgrade and your warranty terms – we can advise on manufacturer-safe options.

Can you make my Aston Martin sound louder but still refined?

Absolutely – our custom exhaust tuning offers a deeper, sportier tone without excessive noise, tailored to your preference.

Do you offer track-focused performance upgrades?

Yes – we can install track-ready components such as high-performance cooling systems, uprated brakes, and precision tuning.

How do you ensure reliability after upgrades?

We use premium parts, advanced diagnostics, and careful installation to maintain engine health and long-term reliability.

Can you remap both naturally aspirated and turbocharged Aston Martins?

Yes – our tuning services cover all engine types, with bespoke maps for maximum performance and drivability.

Get a quick quote

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