[quote=Think its mainstream thinking now that backpressure is a myth. Running 3" would likely mimic an open exhaust, which is actually ideal, given proper engine tune, based on current thinking. Sure, opening up the exhaust would likely make the engine feel soft in the lower rpms but with tuning, it should recoupe if not increase the low rpm tq.
Can't go along w/that way of thinking.
Next you will be saying you can run 2" primary tubes on your headers on a 250 C.I. engine, it equals less back
pressure ,right?
MDHD
