other. right now on my 6.0 i run true dual dumped flow 40's. its not loud enough for me. i've been trying to decide on a smaller muffler that will get me a louder sound
my last truck had true dual straights out the back. it was loud. i had 3 1/2 x 22 inch tips on it. i'm a fan of the longer tips because it helps to deepen the note and gives it a much cleaner look when you can't see the exhaust piping
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