no need to back pressure, cars make only like 1 psi.
Res delete will make it super raspy and sound terrible. But buy some mufflers, like flows or magnaflows, 3.1 always sound better than 3.8's
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03-19-2012
no need to back pressure, cars make only like 1 psi.
Res delete will make it super raspy and sound terrible. But buy some mufflers, like flows or magnaflows, 3.1 always sound better than 3.8's
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