FS: FS - Motordyne HFC
06-01-2014, 04:26 PM
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FS - Motordyne HFC
SOLD - Motordyne HFC. Bought new with the y-pipe, but only used for < 500 miles.
Last edited by 84Strat; 09-10-2014 at 06:52 PM. Reason: Sold
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08-29-2014, 09:16 AM
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curious about how this works. You get this HFC section if you decided to run ART pipes or test pipes for emissions testing right?
But wouldn't this negate the benefits of running ART/test pipes?
But wouldn't this negate the benefits of running ART/test pipes?
08-29-2014, 10:58 AM
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With ART pipes and the XYZw/HFC you are going from two regular restrictive cats to one highflow cat on a y-pipe with a superior merge point. You tend to lose some low-RPM tq with regular straights, but the ARTs mostly negate that. Altogether you should be looking at sizable, useable gain and negligible loss.
Last edited by gonZo50Z; 08-29-2014 at 11:01 AM.