I really just want to know if it is bad for the car. Currently running stage 3ish tune with stock dp and muffler and resonator delete. Every once and while I get a backfire on an aggressive downshift that usually gets ppl ducking. What is actually causing this too happen? Is it too much fuel? Too much timing? Or both? Does it even matter because it sounds cool?
Just wanted to get some opinions. On my Abarth I could actually make it backfire by rev matching on my downshifts (race dp) but with my Fiesta it seems more random like once every 20 downshifts.
Just wanted to get some opinions. On my Abarth I could actually make it backfire by rev matching on my downshifts (race dp) but with my Fiesta it seems more random like once every 20 downshifts.