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SKU: 60679 | UPC: 808422606790
Borla 2019-2023 Chevrolet Silverado 1500 / GMC Sierra 1500 Optional S-Type Muffler Part # 60679
The Borla S-Type Muffler (60679) replaces the Polyphonic Harmonizer in your Borla ATAK Cat-Back system on 2019-2023 Chevrolet Silverado 1500 and GMC Sierra 1500 models with 6.2L V8 automatic transmission (2WD/4WD). This 3.5-inch diameter muffler provides a quieter S-Type sound level while maintaining the Borla Sound of Power, plus gains in horsepower, torque, fuel economy, and engine longevity. Experience throttle response, shift power, and an aggressive soundtrack built for performance driving.
Key Features
- S-Type Sound: Swap into ATAK system for toned-down volume versus aggressive ATAK tone while keeping Borla's signature exhaust note.
- T-304 Stainless Steel: Premium material resists corrosion better than 409-grade alternatives for long-term durability and performance.
- Maximum Flow Design: Engineered for optimal exhaust flow to increase power and torque output on 6.2L V8 engines.
- CNC Precision Manufacturing: Computer-controlled fabrication ensures exact fitment and weld integrity on all-welded construction.
- Million-Mile Warranty: Backed by Borla's lifetime guarantee against defects for direct-fit reliability.
Product Notes
- Requires existing Borla ATAK Cat-Back system (e.g., 140758, 140759) on compatible vehicles.
- Clean regularly with mild soap to preserve stainless steel finish and performance.
- Ships in protective box; 11 lbs product weight, 15 lbs shipping weight, dimensions 24" x 12" x 12".
Installation Notes
- Professional installation recommended.
- Direct bolt-on replacement; no cutting or welding needed for Polyphonic Harmonizer swap.
- Compatible with factory hangers and Borla ATAK hardware; torque clamps to spec.
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 |
| 2022 | GMC | Sierra 1500 Limited | Denali |
| 2022 | GMC | Sierra 1500 Limited | SLT |
Why Choose Borla?
- Leaders in stainless steel exhaust since pioneering systems for Rolls-Royce and Ferrari classics.
- Builds power, torque, and efficiency into every component for street and motorsport use.
- Uses precision CNC processes and T-304 steel for fit and million-mile performance.
Frequently Asked Questions
-
Q: Does this muffler fit my 2020 Silverado 1500 6.2L?
A: Yes, if equipped with Borla ATAK Cat-Back (part 140758/140759); direct replacement for Polyphonic Harmonizer on 2WD/4WD automatics. -
Q: What material is used in muffler 60679?
A: T-304 stainless steel throughout, all-welded for strength, flow, and rust resistance versus lesser grades. -
Q: What warranty covers this part?
A: Borla's Million-Mile Warranty on direct-fit mufflers covers defects for the vehicle lifetime.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure cardboard box, 24" L x 12" W x 12" H
- Weight: 11 lbs (product), 15 lbs (shipping)
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