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12-07-1999, 02:40 AM
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#8 |
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Registered Member
Join Date: Nov 1999
Location: Newtown, PA, USA
Posts: 34
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John, Maybe I was mistaken or short a little on actual hp with the high flow cats, but 10-15hp increase from mufflers alone?
As I mentioned in my earlier posts I didn't see any increase so to speak from headers and cat-backs and nwgsr was looking strictly at cat backs. |
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