** Please note that before purchasing the Extreme Crackles, you need to have a Stratified Base Tune first. **

Running this feature will release a higher amount of heat and sound energy into the exhaust system. This can be detrimental to components such as oxygen sensors and mufflers which can decrease their lifespan. USE AT YOUR OWN RISK.

• Your car MUST have an aftermarket downpipe for Extreme crackles.
• This feature does not add additional fuel to create crackles.
• COMPATIBLE ONLY WITH STRATIFIED CUSTOM TUNES AND STRATIFIED FLASH TUNES.