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5 Posts
Hey guys I'm new here and I was wondering what is the diffrence between managa flow exhaust and going to my local muffler shop and haveing them put 2 1/2 duals from the cat back with 4" tips on my 03 5.7 hemi? Witch do you think I will get the biggest gain from all I have done to the truck so far is a bbk CAI thank you