2008 mustang GT stock Headers vs Pypes Long Tubes. Before and after. Before was stock manifolds with pypes o/r x and glasspack axle back. After is pypes Long tubes shorty o/r x and same glasspacks.
Other mods JLT cai, bama tune, excedy clutch with light weight flywheel, drive shaft shop light weight aluminum shaft, 4.10s, mgw short throw, bmr lowering springs.