Highflow or off-road at track??
 

Should I run my MAC highflow or my off-road H-pipe at the track??? Or wouldn't there be a noticable difference either way? Thanks

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87 GT, BBK shorty's, offroad H-pipe, ASP pullies, 70mm T.B., Cobra intake, no smog pump, Windsor Jr irons, Comp cams 1.6 rollers, F303 cam, H.D. export W.P., Tri-Ax, FMS subframes, Battle boxes, SSM liftbars, FMS King Cobra clutch, mass-air conversion, 73mm C&L, 24lb injectors, BBK fuel pressure regulator, 3/8" no EGR spacer, and other piddly sh*t.

Why don't you bring both to the track and conduct your own experiment? You can then post the results. My hypothesis- The offroad h-pipe will net you a higher mph.