Slight exhaust modification needed

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I've got the 2015 ltz.
Does anyone remember how the 2012 (rough year) Denali sounded? Had a nice stock grumble? That's what I'm looking for. I don't want anything like flowmaster or anything that makes it sound to "throaty" just something that give it a little more grumble.
Suggestions?


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NickTahoe15

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What's resonator?


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It's the rearmost piece, closest to the rear bumper. One thing to note however is these trucks have three cats, where as the older denalis had two. I'm pretty sure this is a key component as I've been trying to accomplish the same thing.
 

twhitechurch

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I did this on my 5.3L you dont hear that much of a difference in low RPM, but definitely hear it open up in the higher range. Best is its a free mod.
 

Jonah52

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My 07 Denali sounds really lopey. 2 cats and 1 resonator with stock 3.5" piping. Get rid of that third cat and resonator it will sound great.
 

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