Dramatic Exhaust Sound
Controlled overrun fuelling creates pops, bangs, and crackle on deceleration — the same effect as high-end sports cars.
Engineer-tuned · 15–45 min turnaround
Pops & Bangs / Crackle Map
Aggressive overrun mapping for an exciting exhaust sound. Controlled combustion in the exhaust produces dramatic crackle and pops on deceleration.
Any file £50, from £30 in packs
500+
Maps Delivered
Petrol
& Diesel
3 Levels
Intensity
OEM ECU
Compatible
Pops and Bangs (also known as crackle map, overrun, or burble tune) is one of the most exciting and popular ECU modifications. By modifying how the engine handles fuel during deceleration, we create controlled combustion events in the exhaust that produce dramatic pops, crackles, and bangs.
How Does Pops & Bangs Work?
During normal deceleration, the ECU cuts fuel injection (overrun fuel cut). A Pops & Bangs map modifies this behaviour to continue injecting small amounts of fuel during deceleration. This unburnt fuel ignites in the hot exhaust manifold and turbo, creating the characteristic sound.
Key benefits
What you get
Adjustable Intensity
Choose from mild crackle (subtle pops), moderate (regular pops), or extreme (loud bangs with flames on decat exhausts).
Safe Implementation
Our maps use controlled overrun fuelling strategies that do not damage catalysts, turbos, or exhaust components when properly configured.
Combine with Remap
Pops & Bangs is commonly added on top of a Stage 1 or Stage 2 remap for the complete performance and sound package.
How it works
From upload to flash
01
Read ECU
Extract your ECU file. Tell us your exhaust setup (stock, decat, sports cat) and desired intensity.
02
We Map It
We modify overrun fuelling, ignition cut, and injection timing maps to create the pops & bangs effect.
03
Flash & Test
Write the file and test on deceleration (lift off throttle in gear). Adjust intensity if needed.
04
Enjoy the Sound
Every overrun and downshift now produces exciting pops and crackle from your exhaust.
FAQ
Common questions
Does Pops & Bangs damage my engine?
When properly calibrated, no. We use controlled overrun fuelling strategies within safe parameters. However, extreme settings on stock exhaust with catalytic converters can increase catalyst temperatures — we recommend decat or sports cat for best results.
Does it work on diesel engines?
Yes! Diesel pops and bangs is possible on turbocharged diesels. The effect is different from petrol (more of a burble/crackle) but still very satisfying.
Can I turn it off later?
Yes. We keep your original file. If you want to remove the pops & bangs effect, we can reflash your original calibration or a clean remap without the overrun mapping.
Will it work with my stock exhaust?
Yes, but the sound will be more muffled. For the best pops & bangs effect, a decat or sports cat exhaust is recommended.
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