I have a stock b7 s4 with nothing besides a magnaflow exhaust on it. So far I always get that blip but I did notice something else though. Sometimes, if I’m in a rush I wont have the key turned “long” enough when cranking, so it kinda feels like its about to die but then it just kind of hops to start. I usually have it in ACC mode for 5-10 seconds before cranking.