oh no no no, get the bolt ons and tune, then do it, dont do your car and pride an injustice if things dont go your way, lol
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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs
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