Pops & Bangs Tune Sydney

A pops and bangs tune — also called a crackle tune, burble tune, or anti-lag overrun calibration — is a modification to your vehicle's ECU that alters the ignition timing and fuel delivery during deceleration. The result is that satisfying crackling and popping sound from the exhaust when you lift off or downshift.

Done correctly, it adds character to a car without compromising reliability. Done carelessly — with aggressive fuelling or excessive ignition retard — it can raise exhaust temperatures, accelerate catalytic converter wear, and cause turbo shaft seal issues over time. That's why you want this done by someone who understands engine calibration, not just someone copying settings from an internet forum.

At ATRA Performance, every pops and bangs calibration is custom-developed for your specific engine platform. We set appropriate deceleration fuel quantities, overrun timing, and RPM thresholds that give you a great sound without putting your drivetrain at risk. We also offer levels from subtle and daily-driver-friendly, all the way to more aggressive street builds.