Replace the Polyphonic Harmonizer behind the primary muffler in the BORLA 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. Designed to provide maximum flow & power. 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:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2021 | Chevrolet | Silverado 1500 | Custom Trail Boss |
| 2019-2024 | Chevrolet | Silverado 1500 | High Country |
| 2020-2024 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2019-2024 | Chevrolet | Silverado 1500 | LTZ |
| 2020-2024 | Chevrolet | Silverado 1500 | RST |
| 2022-2024 | Chevrolet | Silverado 1500 | ZR2 |
| 2022 | Chevrolet | Silverado 1500 LTD | Custom Trail Boss |
| 2022 | Chevrolet | Silverado 1500 LTD | High Country |
| 2022 | Chevrolet | Silverado 1500 LTD | LT Trail Boss |
| 2022 | Chevrolet | Silverado 1500 LTD | LTZ |
| 2022 | Chevrolet | Silverado 1500 LTD | RST |
| 2019-2025 | GMC | Sierra 1500 | AT4 |
| 2024 | GMC | Sierra 1500 | AT4X |
| 2019-2024 | GMC | Sierra 1500 | Denali |
| 2024 | GMC | Sierra 1500 | Denali Ultimate |
| 2019-2024 | GMC | Sierra 1500 | SLT |
| 2022 | GMC | Sierra 1500 Limited | AT4 |
| 2022 | GMC | Sierra 1500 Limited | Denali |
| 2022 | GMC | Sierra 1500 Limited | SLT |
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2022 | Chevrolet | Silverado 1500 | High Country |
| 2019-2022 | Chevrolet | Silverado 1500 | LTZ |
| 2022 | Chevrolet | Silverado 1500 | ZR2 |
| 2019-2022 | GMC | Sierra 1500 | Denali |
| 2019-2022 | GMC | Sierra 1500 | SLT |
