if your R56 pops now then it will continue to pop, just a bit louder. If your R56 doesn’t pop then the exhaust won’t help it pop. If you want I can increase your horsepower by 40-100hp with ECU tuning. I also can add pops and burbles and even flames

Thanks
Mario

mQubed Motorsport Manic & RPM Power Tuning

unless it’s a 07 then not so much