No offense, but you need to post some dyno numbers (preferably in SAE) with a stock cat vs ARK HFC vs ARK TP to get some sales. Lots of us have money in hand but we need real world results to buy. Sound vids including the resonated TP would be a bonus too..
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2013 Ford Mustang GT
374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
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