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I have the trubendz duals with the borla muffler. What's the diameter of the pipe coming out of the muffler and bolting onto the factory y-pipe? Is it 2" or 2.5"?

Mike
 

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Josh told me its 2" just to be a kosher fit to the stock Y.

My brullen Y is 2.5 but that pipe to the muffler is still 2"

I know my dynomax muffler is 2" too, i referenced the number. I called josh at trubendz about it and asked him what product # dynomax muffler they use just to check weather or not the previous owner of my system jipped me, and josh was like, "I dunno". thats also when he told me the pipe from the cat is 2" and so is the pipe from the exhaust that mates up to it. Thats next on my list is to get a shop to replace that pipe and my muffler to have a FULL 2.5" system.
 
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