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Old 09-20-2016, 05:28 AM
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Re: Swapping the suitcase muffler

I have the gibson axle back exhaust for close to a year now on my 15 altitude. It gives it a nice rumble when u get on it. Get the stainless steel one. I also put two magnaflows and got rid of the suitcase muffler so now this thing is louddd

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Old 09-20-2016, 11:17 AM
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Re: Swapping the suitcase muffler

Originally Posted by rlefig View Post
So the suitcase is gone and two short magnaflows have replaced the suitcase. I have two dual straights for the 3.6 now and kept the stick reso's. The sound is quiet maybe a bit deeper. I asked them about an x-pipe and Lou's custom said it was not needed. It moves along good, about the same as before. Again not sure what an X or H pipe would give it different.

I don't know if I should get a retune from hemifever
What part number bullets did you get?
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Old 09-20-2016, 11:25 AM
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Re: Swapping the suitcase muffler

i forgot the part # and its not on receipt. I do know that they are short maybe 14" mufflers
2011 Brilliant Black GC - V6, Airraid CAI, MagnaFlow/Stock dual exhaust, Hemifever 91 Tune, Blacked Out, SRT Rep Rims, 265/50/20 Cooper tires, SRT Vapor Grille
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Old 09-24-2016, 03:26 AM
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Re: Swapping the suitcase muffler

From what i have heard the ;Borla Touring Cat-Back Exhaust Systems 140406 should fit direct bolt on, however you will need to change the rear deffer.. Summit racing has a review also on it. I will be getting it to see for myself
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