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Overrun Crackles - pop & bang tuning

Pops & Bangs, Overrun Crackles & Exhaust Flames – Onyx Performance

Overrun Crackles - pop and bang tuning

If you’re looking to add more excitement to your driving experience, our Pops & Bangs, Overrun Crackles, and Exhaust Flames tuning offers the perfect solution. This feature, commonly found on modern performance cars, creates the distinctive sound of pops, bangs, and crackles when lifting off the throttle. Manufacturers have even coined terms like “Crackle Mode” and “Overrun Burble” to describe it, making it a signature feature for enthusiasts.

At Onyx Performance, we have spent countless hours developing and refining this calibration to ensure it is both safe and reliable while delivering an aggressive and engaging exhaust note.

How Pops & Bangs Work

This feature is achieved through precise tuning of the ECU, where a controlled, lean misfire is introduced when the throttle is released. The result is a series of pops and crackles from the exhaust, with the intensity varying based on engine load, RPM, and exhaust temperature. The hotter the system, the more pronounced the effect.

For vehicles with a decat or performance exhaust, the effect can be even more aggressive. Select petrol cars with cat-delete setups can also be tuned to produce exhaust flames, creating a truly dramatic experience.

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.

Customisable Pops & Bangs Tuning

We offer different levels of pop and bang tuning to suit various driving styles and preferences:

– Mild Overrun Crackles – A subtle enhancement for daily driving

– Aggressive Pops & Bangs – A sportier, more noticeable sound

– Hardcut Limiter with Crackles – For an intense, track-focused experience

– Exhaust Flames (Off-Road Use Only) – For cars with a decat setup

This feature is customisable, allowing you to select the level of intensity based on your exhaust setup and driving style.

Available for Most Petrol Performance Cars

This tuning is available for a wide range of petrol vehicles, including:

Audi S & RS models

BMW M Series

 Mercedes-AMG models

Volkswagen GTI & R models

Porsche Performance Cars

Nissan, Ford, and other modified petrol vehicles

Serving Slough, West London & Surrounding Areas

Based in Slough, Berkshire, we provide Pops & Bangs remaps, Overrun Crackles, and Exhaust Flames tuning for customers from: Slough, Denham, Farnham Common, Stoke Poges, Maidenhead, Windsor, Ascot, London, Marlow, Bracknell, Staines, Reading, Heathrow, Hayes, Southall, Feltham, Hounslow, High Wycombe, Uxbridge, and beyond.

Customer Reviews

Posted on Google Google
Anil Soni profile picture
Anil Soni
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
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subin pradhan profile picture
subin pradhan
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
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J JareCki profile picture
J JareCki
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Google
Dan May profile picture
Dan May
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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
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Darren Dawes profile picture
Darren Dawes
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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 Google
Hana profile picture
Hana
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Google
Mark profile picture
Mark
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing service
Posted on Google Google
pavan khangura profile picture
pavan khangura
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Pop & Bang Tuning in Slough Today

Add character and excitement to your car with our overrun crackles (pop & bang tuning) service in Slough. Safe, customised, and tailored to your driving style. Contact our tuning specialists today to book your appointment. 

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.

Legal Considerations

Our Pops & Bangs tuning, Hardcut Limiters, and Exhaust Flames are developed exclusively for off-road and motorsport use. Using these features on public roads may result in legal consequences, so we advise customers to ensure compliance with local regulations before activating these settings.

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