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If you have the same diameter and length muffler. How else can they be different to sound different? There is not much to a straight through muffler other than the canister around .
Arizona'a most powerful 600HP 15 second Z More powerful than a stock TT , slower than an NA Dynoed 515 rwhp and 420 ft.lbs @ 16psi 89 degrees. 533 rwhp and 450 ft. lbs @19 psi and slipping clutch and heat soaked motor , 85 degrees.
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