Rhs Indy X Head Thread

It's all combo relative.

mufflers in drag racing are to meet db requirements, class requirements, and or street requirements in order to drive to the track.

Full lengths generally make the most torque/hp over shortys which will usually only make more hp over stock manifolds.

think ''scavenging'' long tube, long pulse, more pulled out.

ot dam it, the tarps being blown off the work shed brb