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Gibson Exhaust Systems Part #9532 Customer Reviews
2 Customer Reviews
Reviewed by James R (GARLAND, TX) Reviewed for a 2007 Ford F-150 — Dec 27, 2012 5:38 PM
An hour to install and it sounds mean, even though my 4.6l isn't. The interior resonance is noticable at low rpms, barely at highway speeds more under slow acceleration. Lost a little off the line snap but gained 2k to 4k hp, I usually only go maybe 3k. Has a real 'race rumble' and it sounds like I'm racing even when I'm not. I put downturns on it to take it down a notch, and it did a little.