Replace the Polyphonic Harmonizer behind the primary muffler in the ATAK? system with muffler 60679 to attain the "S-Type" sound level (quieter than ATAK?). Built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA? stands behind every direct fit muffler with a Million-Mile Warranty. Just what you?d expect from the world?s most experienced (and most winning) exhaust brand.
This Part Fits:
Year |
Make |
Model |
Submodel |
2019-2023 |
Chevrolet |
Silverado 1500 |
High Country |
2019-2023 |
Chevrolet |
Silverado 1500 |
LTZ |
2022-2023 |
Chevrolet |
Silverado 1500 |
ZR2 |
2022 |
Chevrolet |
Silverado 1500 LTD |
High Country |
2022 |
Chevrolet |
Silverado 1500 LTD |
LTZ |
2019-2023 |
GMC |
Sierra 1500 |
Denali |
2019-2023 |
GMC |
Sierra 1500 |
SLT |
2022 |
GMC |
Sierra 1500 Limited |
Denali |
2022 |
GMC |
Sierra 1500 Limited |
SLT |