Sunadaime

Why always X pipes or H pipes. Thats all i ever hear about on hear. Why does no one have Straight pipes?

Injected97GT

no scavengingin help...u**** you...asking questins on superbowl. dumbass :-P

texas_stang02

this explains it pretty thoroughly... this guy's explanation is dead-on, so enjoy:

https://mustangforums.com/m_1028601/tm.htm

oxfordgt

Sounds like *** well more like a really wet fart and you will lose power by creating backpressure.

Sunadaime

cool
i was just wondering. never heard of straight pipes on stangs now i know.

mustangman02232

because 4.6s have an odd fireing order and true duals will result in to much back preasure[8D]

SXGT

... you mean not enough.. right?

2000GT4.6

OH..... God.... head going to explode...... backpressure brought up again...........




Someone call theee emerreeegennccyy nnubb.awer......

texas_stang02

you want as little back pressure as possible. if you wanted back pressure, then there would be no point in doing aftermarket exhaust upgrades. i remember reading before about professional racing teams (some road course and some circle track even) experimenting with pressure zones under the car and found that due to high speed air flow, there were some areas under the car with negative pressure and they routed their exhaust to exit at this point, which created a slight vacuum effect, literally "pulling" exhaust gases from the pipes, so the engine had to use less power to expel those exhaust gases.

back pressure is unwanted because it uses up engine power just to propel them through the exhaust system. why would you want something that will use up engine power?

ZW99GT

Oh goodness. Not the backpressure again.

Midpipes help equalize pressure, and it sure does help the sound. The X vs H is purely subjective, and you can go either way.