Sign up for FREE! Become a GM-Trucks.com Member Today!
In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience.
Hello everyone, I currently have the GM Borla Performance Exhaust on my 2018 6.2L and I want more sound. The guys at muffler shops recommended I replace the muffler with this one: https://www.holley.com/products/exhaust/mufflers/street_chambered_mufflers/40_series_original/parts/430402 Part number:430402. I am aware that my current system has a flapper which eliminates drone but would that carry over to this louder muffler?
Well, paid $80 to get the muffler and flapper cut off on my 19 with the 5.3l..
The drone is pretty bad and it sounds a bit too airy. At idle it sounds great, same with hard acceleration.
On my 14 with the 6.2L, this mod sounded great.
Should I have kept the flapper? I thought I read plenty of people who said save money do a muffler delete. What can I do to help this out?
By Max M
Trading in truck and looking to sell the exhaust I had on it for about a year. It’s in great shape. Asking $650 with shipping costs paid by me.
Part number is 140550BC on borla’s website. Pm or reply if interested. Located in Orlando, Fl if anyone wants to local pickup and avoid dealing with shipping.
Replaced my stock exhaust ('19 Sierra, 4WD, Extended Cab) with a Borla. What the hell do I do with the stock exhaust? Can't envision a need for it anywhere. Just hold on to it or is there a market for stock gear?
Just looking for suggestions so it doesn't sit in my garage!
Recently Browsing 0 members
No registered users viewing this page.
Most OnlineNewest Member
Who's Online 99 Members, 2 Anonymous, 2,277 Guests (See full list)
- kickass audio
- Ryan Fry
- Max Z71
- SILVER SLED
- gerald compton
- gm trooper
- Eddie 70
- Hogan Vinoski
- Dakota Mcclain
- Ray Pickle
- Brian P
- William S
- Bill Gutman
- STERN TRANSPORT
- Mac Duncan
- Michael Rollins