I've got a V8 and I'm running them out just in front of each rear tire. The downpipes feed directly into an x-pipe crossover just under the transmission crossmember, and then straight into a pair of Thrush superturbo mufflers and then 45 degrees to angle in front of the rear tires and out with a nice pair of Hearthrob chrome tips. 2.5 inch mandrel bent aluminized pipes all the way back too. My headers are '86 Corvette shorty headers.
