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Does anybody have any dyno experince with this? 2.5" Duals seem a bit large but I am just guessing. from 4/6 cyl experiance you can see a big loss on an exhaust with an exhaust that is too large. On the Rally car we saw a 14 horse loss with a 2.5" exhaust 232hp @ 9000 vs 218 @ 9000 at the...

Magnaflow Aluminized mufflers fail quickly, We used them on some of our VW wxhaust and they sounded great for about a month tops and then the packing would blow out and they would sound terrible, now the stainless mufflers seemed to last a long time on our land rover exhausts we made they...