H-pipe
In respects to your h-pipe question. The H-pipe more or less cleans the gasses as they are being pushed out of your engine. During this process the gases are slowed down. The mufflers more or less just control soundlevel, dependent on if they're straight flows, or have chambers. Removing the h-pipe with the cats on, and replacing it with an h-pipe w/o cats will increase the flow. Obvisouly you could look at it as, the less obstructions...the more flow you get. So without the cats, the gases aren't slowed as much, basically pushing the gas faster inside of the tubes. Which actually shoves it into the mufflers. Did that help you at all with anything?
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1989 Mustang
5.0 Conversion, Full Saleen ground effects and spoiler, '94 saleen decal set, '93 Saleen Seats, Black interior from a '93, Steeda quadrant, smog pump delete, a/c delete, Steeda Tri-Ax shifter, '97 rear differential, aluminum driveshaft, 5 lug conversion, '97 rear disc brakes, southside upper and lower control arms, '99 GT Anniversary wheels, flowtech longtubes, flowtech offroad H-pipe, saleen lowering springs, kyb shocks, caster/camber plates
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