The backfire can also be achieved in SPORT mode as well. Preferably in 2nd gear and can do just even 75% throttle lifting off as many times are u want just below 5k RPM (don't know exact RPM) to manipulate the backfire consistently. Another easy way is when you downshift from 3rd to 2nd but make sure the REV match doesn't blip the RPM too high otherwise it won't backfire.
Also with the FABSPEED downpipe installed it can create a double backfire when u get aggressive.
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