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Numbers aren't everything. My experience was the car felt much better going from 3inch to 70mm. Sure, 3 inch probably makes more numbers, but i enjoy driving my car and value the driving experience...

Having had a K swap and falling for the you need a 3inch trap. Sure it works, but you dont need it that big. Also muffler Vs straight pipe, You do not gain power by removing a muffler, the same goes...