Magnaflow offers 2 different sizes of resonated x pipes....5x8x18......5x11x22. The larger one really quiets down the car. If you want to keep your car louder without rasp and also give it a deeper tone get the smaller one. I have the tru x on my car with hi flow cats and muffler delete. I'm going with the smaller resonated x pipe in the spring. Imo my car is a little to high pitched with some rasp.
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