Thread: Exhaust Modifications
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Old 03-02-2007, 04:00 PM
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jwoodard jwoodard is offline
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Cobra Make, Engine: Previous owner of SPF#1938, with a Keith Craft 496ci Genesis 427 side oiler, 667 FWHP, 633 FWTQ, 560 RWHP, 550 RWTQ.
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I did the same thing, changed headers and side pipes and was fortunate enough to have dynoed before and after. I went with polished stainless headers with 2" primary tubes and built my own side pipes using 2" primaries into a Hooker headers 4 into 1 collector and a Howe Racing muffler, part #H3002. Picked up 59 RWHP and 50 RWTQ with the change.

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