Corsa catback 6.2 Yukon XL AT4

[Fast_AT4]

Quick little video...with cold start :evillol:

YouTube

 

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PEDAL COMMANDER for GMC Sierra 1500/2500/3500 - Grab one through Amazon!

[bmbentley]

I just ordered one for my 2025 Yukon XL AT4 Ultimate last Thursday. Just got the email that they were building it today, and it'll ship after this week!

 

[bmbentley]

I finally got around to installing my brand-new CORSA Catback Exhaust installed on my 2025 GMC Yukon XL AT4 Ultimate ( 6.2L ). Here's a quick little video of it with a "Warm Start" vs. "Cold Start"

 

[Danimalx87]

Did your AT4 come stock with the square tips? I want to keep those but upgrade the rest of the system.

 

[bmbentley]

Mine had the quad square tips on the factory exhaust.

They're welded on to the stock pipes, but I imagine you could have someone cut & weld them on to the rest of the Corsa catback.

Did your AT4 come stock with the square tips? I want to keep those but upgrade the rest of the system.

 

[Danimalx87]

Oh man, I'm definitely going to need a muffler shop to help me then. The tips on my passenger side are crooked too and it doesn't look like there's a way to correct that without a cut and weld anyway...