
05-10-2012, 04:38 PM
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CC Member
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Join Date: Dec 2010
Location: Tempe,AZ-High Point,NC,
AZ
Cobra Make, Engine: Kirkham #684, 482FE, Mike Mccluskey build
Posts: 2,520
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Not Ranked
I've seen a few SPF stock mufflers cut open and they looked pretty restrictive, there just does'nt seem to be a market for the better exhaust, most guys can't tell the difference in HP gains with the better flowing system. Now if we are talking stainless steel vs mild steel there seems to be more interest in changing to the superior metal.
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