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Old 01-26-2014, 08:22 PM
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Gecko Gecko is offline
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The magnaflow, or any straight through design will be your best bet for performance. Doesn't matter how long or short the straight through design is. The shorter the magnaflow the louder it will be. The flowmasters are chambered and thats why they don't flow well.

If you're only doing a muffler swap though, you probably wont see much, if any, improvement in MPG or HP. You'd have to get a CAI and a tune to see the best results from that stuff.
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