Crashed my track only 944 Ducati hard enough that it needed new exhaust.All the other damage was bodywork and controls.It had a pair of really big Akra's on it before and didn't backfire or pop when downshifting.Now with a pair of Remus cans installed,it pops with every downshift.(only a run up and down my street).It's fuel injected,so i don't think anything could have changed.Could a slightly more restrictive exhaust cause this?Do i need an expensive dyno session now to remap?