Originally Posted by Running925
ok well if u guys believe that backpressure is such a myth, take your stock motor & put a huge straight pipe on it. you will see that the car doesn't perform as well.
bottom end torque will be lost
thats not what im saying. what i am saying is that you need the exhaust to be properly sized to the engine's specs. too big and your velocity goes down. too small and your choking it.