New guy here, just bought a 03' Yukon Denali XL (which catback or muffler to get?)

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mharders

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They also have a dual in/dual out if you don't want to modify it too much, I don't know the part of hand. again I went with the single out Just because I added a turndown after the muffler.
 

vserduchka

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Forget catback. Get a Magnaflow 13259 muffler. Sounds amazing. No cabin drone.

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vserduchka

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They cut my y-pipe and welded on a short straight pipe.

Do a TB and MAF cleaning while youre at it to maximize your gains.

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Rpprvnce

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Just ordered my Magnaflow 13259 XL what do yall think about turndown or running it all the way out? I kinda like not seeing it but i know i dont want to hear it cruising down the highway....
 

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