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Find a pair of factory NPP mufflers. You will love them. Closed - nice exhaust sound with absolutely no drone. I can run down the highway at 80mph with my 3.91s & i hear just enough to know the engine is running. Open- essentially strait through exhaust. I have less than $650 in my setup including the 1LE diffuser.
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2012 2SS/RS 6speed, Howards asa cam on 113lsa Stainless works LT's, NPP exhaust, Z28 Cai, 3.91 gears. Tuned by Blue Thunder 2 racing Lubbock Texas.
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