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Your cart is empty.Tips NOT Included Use Factory Bezel/ Valance. System features BORLA's Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound to the BORLA mufflers. The mufflers then enhance this sound to the character and volume appropriate for our Touring, S-Type and ATAK systems. BORLA Cat-Back & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.
william allen
Reviewed in the United States on April 19, 2025
Borla cat back atak exhaust installed on my 2019 sierra denali 6.2L. Looks great, even though you won't see it. Sound is amazing, even on a cold start does not sound excessively loud ! obnoxious. Very nice grumbly roar under acceleration, cruising on the highway it is just audible enough to know it's not stock and enjoy the drive.
Bubs
Reviewed in the United States on July 17, 2023
It fit my truck like a charm and it made it sound very aggressive.
Joshua Kissinger
Reviewed in the United States on May 12, 2023
I had ordered this exhaust for my 19 Silverado and loved it. Now on my Sierra AT4, I at first decided to go with a buddies recommendation for a MBRP and it just didn't have the sound. So i had to make the switch to the Borla. Aggressive and throaty music to your ears. Loud with acceleration, nice rumble at idle, and no drone in the cab. Highly recommended!
Jamie Shoemake
Reviewed in the United States on March 21, 2023
The media could not be loaded.
Michael K.
Reviewed in the United States on November 28, 2022
Install had a hiccup as the muffler was not flanged. Had to be sent to a local muffler shop to get properly flanged. Sounds really amazing. I was worried that it might be a tad too loud, but tones nicely at 75 on the highway with no drone. Very aggressive when throttle on, but tames quite a bit once moving. Leave your neighborhood at 25-30 mph or neighbors might start to hate you!!! I love it.
RL
Reviewed in the United States on March 18, 2021
I just had a muffler shop install this for me ($150 and 45 minutes) and it sounds fantastic! No drone while crusing, I was nervous thinking it was going to be too loud but it was much quieter than I thought it was going to be (warm start). I'm very happy with the sound!
Steve
Reviewed in the United States on June 12, 2020
hardest part of install is removing stock exhuast. two people recommended.
RyG
Reviewed in the United States on March 19, 2020
The media could not be loaded.
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