I just have to say, whoever invented the FRPP M55 exhaust must have been insanely deaf. I just put these on after having them in storage for the past year and I never thought i'd find my limit for loudness. These things are way, way too loud. I have stock manifolds, Bassani o/r X-pipe and currently the M55 cat-back. I'll make a video as soon as it stops raining, but holy hell this combo is definitely for those who can afford the guaranteed ticket by every cop they pass. :nono: