I am new to this site, but not new to mustangs, just bought my 5 stang 2011 5.0. I had stang hi performance in Baton Rouge, La install a CAI, tune, SHP custom cat back exaust and roush 1 3/4 drop springs i also added a set of 20x10 rear and 20x8 1/2 front axis wheels. The car dynoed at 396 rear wheel hp last week at stang hi. Clips and dyno sheet can be seen on there web site www.stanghi.com click on face book link.
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