I'm getting tempted by that ProChamber. But I just can't seem to justify the added cost over a regular $120 h-pipe which will probably make almost the same power.
I think their 20hp claim is possible on a modified car, but on a stock 4.6L, gains will most like be in the 10-15hp range. That's still good for a tenth or two in the 1/4, so go racing!!
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-SamP, BSME-
~1998 Mustang GT~ - Saleen Body Kit, Cobra R wheels (17x10.5 w/ 315/35 in rear and 17x8 w/ 245/45 out front), 3.27 gears, FMS C Springs. . . Waiting for income tax check to do 99PI headswap!
RateMyStang
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