If you’re looking to add character and aggression to your car’s exhaust note, our Pops & Bangs tuning service is the ultimate finishing touch. Also known as overrun or crackle maps, this feature modifies how the ECU controls fuel cut-off during deceleration, causing unburnt fuel to ignite in the exhaust system and produce sharp pops, bangs, or crackles when you lift off the throttle.
When you release the accelerator, most standard ECUs cut fuel delivery completely to save fuel. Our tuning modifies this behaviour so that a small amount of fuel continues to flow, igniting in the hot exhaust system. The result is a distinctive overrun effect a series of crisp pops, bangs, or burbles especially noticeable on turbocharged petrol engines with performance exhaust systems.
Creates a distinctive, motorsport-inspired exhaust note.
Adds drama and character to your vehicle, especially on downshifts.
Works best on cars with sports exhaust or de-cat systems.
Can be calibrated for subtle burbles or aggressive, rapid pops.
At RAT Remaps & Tuning, we carefully calibrate the overrun maps to suit your engine and exhaust setup. We never use “one-size-fits-all” files — every configuration is custom-built to deliver the sound profile you want while maintaining safe engine operation.
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