So I've been reading a few threads on exhausts and people keep saying things about backpressure. It seems that people think that you need more backpressure, but I thought you only needed backpressure, and a small amount at that, if you had a turbo. So I looked it up and found this website: http://www.thumpertalk.com/forum/sho...d.php?t=659727 which explains that you want zero backpressure with the highest output velocity of exhaust gases. Sooo... According to this website, a cut out with the right diameter pipe would be the best choice for performance as to have close to zero backpressure and with the highest output velocity of exhaust gases. So in theory this increase in efficiency should also increase your miles per gallon right?
Does everyone who complains about loosing back pressure actually mean loosing the velocity of output? Because you don't want back pressure right?
Am I wrong or does this make sense?
Edit: According to further reading, you do not want back pressure on turbos either