Straight pipes lower EGTs, but it's not really an issue unless the engine is tuned extremely hot. Most people do it for the sound.
Backpressure is a myth, more is not better. Scavenging is what matters and that happens within the first couple feet of exhaust (mainly the headers).
If you want it quieter, throw an aftermarket muffler on, it'll be fine. If you don't care or like the sound, just weld in a piece of pipe.
Backpressure is a myth, more is not better. Scavenging is what matters and that happens within the first couple feet of exhaust (mainly the headers).
If you want it quieter, throw an aftermarket muffler on, it'll be fine. If you don't care or like the sound, just weld in a piece of pipe.