
06-19-2007, 09:26 AM
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CC Member
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Join Date: May 2007
Location: Birmingham,
AL
Cobra Make, Engine: FFR, 302/317rwhp Mass flo, AFR heads
Posts: 4
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Not Ranked
New dyno results are in for the Sweet-thunder pipes with the smaller diameter chambered mufflers when compared to the FFR 2.5 ID glassbacks. Baseline was 1hp less with the Cobrapacks.
We only lost 5 rwhp with the new exhuast-well worth the trade-off. The sound quality and volume is just so much better than any of the others that i have tested.

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