Exhaust Upgrades

Iceoholic · Aug 1, 2023

Has anyone upgraded their AT4 (gas) exhaust system? If so what did you go with and how does it sound? I currently have a 14 4x4 sierra with the Borla sport and love it. I know Borla won't have anything for the 24 models for quite sometime but I've also heard Corsa exhaust sounds mean as well. There is also a local company that makes motorcycle exhaust systems that has truck packages, does anyone have a Vance and Hines?

reb0957 · Aug 2, 2023

MBRP
I have this one. Not to loud without a load, no drone. I did put a black tip instead of the SS one. Does get pretty loud using tow haul pulling my tractor!

Iceoholic · Aug 2, 2023

I will do a bit of research on MBRP. Thanks for the information!

Snag11x · Aug 2, 2023

Corsa muffler swap. Was perfect not too loud besides on start zero drone.

Iceoholic · Aug 2, 2023

I think I'm going to do the entire cat back system but I hear Corsa has zero drone which appeals to those that do conference calls in my truck haha
Borla definitely has a drone but sounds killer

reb0957 · Aug 2, 2023

I called MBRP direct. I got free shipping plus a mail in rebate. The systems are already boxed up. He did give me a nod nod wink wink discount so adding the black exhaust tip wasn't so bad. It looks like the mail in rebate is better than when I bought it. Also, there mail rebate system is slow.

Snag11x · Aug 2, 2023

Iceoholic said:
I think I'm going to do the entire cat back system but I hear Corsa has zero drone which appeals to those that do conference calls in my truck haha
Borla definitely has a drone but sounds killer

I did this because all said and done it was 450.00 installed. 2000.00 + for thr gm or “performance” exhaust was crazy to me. Sounds great and saved money for more mods.