Hey guys quick thing i've noticed over the last few days... I'm now FBO + Meth and over the last few days i've switched to map 3 and i'll do a pull from 2nd-3rd. Once I shift into 3rd I let boost and meth start flowing then let off pretty soon after. A few times 2-5 seconds after letting off the throttle and just coasting while braking i'll hear a load pop like a backfire coming from near the downpipes. I've been assuming it's leftover meth detonating but today I switched it to map 2 after it happened and it did the same thing in map 2... I don't think this is just because i'm fully catless. Is this normal or should I be worried about something? It sounds awesome but scares the $#@! out of me every time