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:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2021 | Chevrolet | Silverado 1500 | Custom Trail Boss |
| 2019-2026 | Chevrolet | Silverado 1500 | High Country |
| 2020-2026 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2019-2026 | Chevrolet | Silverado 1500 | LTZ |
| 2020-2026 | Chevrolet | Silverado 1500 | RST |
| 2022-2026 | Chevrolet | Silverado 1500 | ZR2 |
| 2019-2026 | GMC | Sierra 1500 | AT4 |
| 2022-2026 | GMC | Sierra 1500 | AT4X |
| 2019-2026 | GMC | Sierra 1500 | Denali |
| 2022-2026 | GMC | Sierra 1500 | Denali Ultimate |
| 2019-2026 | GMC | Sierra 1500 | SLT |
- 2019-chevrolet-silverado-1500-high-country-esi7060412
- 2019-chevrolet-silverado-1500-ltz-esi6813928
- 2019-gmc-sierra-1500-at4-esi5787247
- 2019-gmc-sierra-1500-denali-esi2999101
- 2019-gmc-sierra-1500-slt-esi3818728
- 2020-chevrolet-silverado-1500-custom-trail-boss-esi1686363
- 2020-chevrolet-silverado-1500-high-country-esi8637515
- 2020-chevrolet-silverado-1500-lt-trail-boss-esi7359469
- 2020-chevrolet-silverado-1500-ltz-esi4929872
- 2020-chevrolet-silverado-1500-rst-esi5446197
- 2020-gmc-sierra-1500-at4-esi9467140
- 2020-gmc-sierra-1500-denali-esi8877297
- 2020-gmc-sierra-1500-slt-esi1262477
- 2021-chevrolet-silverado-1500-custom-trail-boss-esi9021668
- 2021-chevrolet-silverado-1500-high-country-esi1840867
- 2021-chevrolet-silverado-1500-lt-trail-boss-esi7758492
- 2021-chevrolet-silverado-1500-ltz-esi1639401
- 2021-chevrolet-silverado-1500-rst-esi5891990
- 2021-gmc-sierra-1500-at4-esi2482766
- 2021-gmc-sierra-1500-denali-esi9479592
- 2021-gmc-sierra-1500-slt-esi7813370
- 2022-chevrolet-silverado-1500-high-country-esi9081153
- 2022-chevrolet-silverado-1500-lt-trail-boss-esi2997735
- 2022-chevrolet-silverado-1500-ltz-esi2111269
- 2022-chevrolet-silverado-1500-rst-esi9689180
- 2022-chevrolet-silverado-1500-zr2-esi7728165
- 2022-gmc-sierra-1500-at4-esi8349768
- 2022-gmc-sierra-1500-at4x-esi6062677
- 2022-gmc-sierra-1500-denali-esi4354757
- 2022-gmc-sierra-1500-denali-ultimate-esi1205922
- 2022-gmc-sierra-1500-slt-esi1075534
- 2023-chevrolet-silverado-1500-high-country-esi4227514
- 2023-chevrolet-silverado-1500-lt-trail-boss-esi6397129
- 2023-chevrolet-silverado-1500-ltz-esi6019075
- 2023-chevrolet-silverado-1500-rst-esi6016934
- 2023-chevrolet-silverado-1500-zr2-esi2153369
- 2023-gmc-sierra-1500-at4-esi7734391
- 2023-gmc-sierra-1500-at4x-esi4991473
- 2023-gmc-sierra-1500-denali-esi7503892
- 2023-gmc-sierra-1500-denali-ultimate-esi5664367
- 2023-gmc-sierra-1500-slt-esi8632151
- 2024-chevrolet-silverado-1500-high-country-esi6451884
- 2024-chevrolet-silverado-1500-lt-trail-boss-esi7608027
- 2024-chevrolet-silverado-1500-ltz-esi5334433
- 2024-chevrolet-silverado-1500-rst-esi8624956
- 2024-chevrolet-silverado-1500-zr2-esi1997991
- 2024-gmc-sierra-1500-at4-esi2676386
- 2024-gmc-sierra-1500-at4x-esi1250439
- 2024-gmc-sierra-1500-denali-esi9974408
- 2024-gmc-sierra-1500-denali-ultimate-esi6821165
- 2024-gmc-sierra-1500-slt-esi6747058
- 2025-chevrolet-silverado-1500-high-country-esi7705194
- 2025-chevrolet-silverado-1500-lt-trail-boss-esi5776660
- 2025-chevrolet-silverado-1500-ltz-esi7351333
- 2025-chevrolet-silverado-1500-rst-esi2355316
- 2025-chevrolet-silverado-1500-zr2-esi2441351
- 2025-gmc-sierra-1500-at4-esi7100565
- 2025-gmc-sierra-1500-at4x-esi5545846
- 2025-gmc-sierra-1500-denali-esi7026831
- 2025-gmc-sierra-1500-denali-ultimate-esi9478968
- 2025-gmc-sierra-1500-slt-esi2387961
- 2026-chevrolet-silverado-1500-high-country-esi8293097
- 2026-chevrolet-silverado-1500-lt-trail-boss-esi7305798
- 2026-chevrolet-silverado-1500-ltz-esi6961942
- 2026-chevrolet-silverado-1500-rst-esi7443820
- 2026-chevrolet-silverado-1500-zr2-esi8825575
- 2026-gmc-sierra-1500-at4-esi1837964
- 2026-gmc-sierra-1500-at4x-esi2233472
- 2026-gmc-sierra-1500-denali-esi7826022
- 2026-gmc-sierra-1500-denali-ultimate-esi8587488
- 2026-gmc-sierra-1500-slt-esi2564181
- ClearanceItem:N
- EPA:N/A
- fits_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
- LTL:N
- MPN:60679
- Non-CARB:N
- Prop65:Y
- SpecialOrder:N