Exhaust Set Up

Discussion in 'Fox 5.0 Mustang Tech' started by RalphWT, Dec 6, 2003.

  1. I have a 1986 GT with Mac Equal Lenght Headers, and Off Road H-pipe, am I looseing power by running straight pipes or do I need flows.
  2. more backpressure usually means higher torque and lower horsepower, less backpressure means less torque and higher horsepower, so no you are not losing horsepower, but you are losing torque

  3. Actually 5.0 and Superfords did a test on like 15 mufflers I think. They dynoed them all on the same car in the same day. Every muffler made close to 5hp more and about the same amount of torque than with no muffler. Plus open headers on a street car sounds nasty :notnice: