Borla 60680 ATAK Polyphonic Harmonizer for 2019-2026 Chevrolet Silverado and GMC Sierra 1500 6.2L V8

Replace the small muffler behind the primary muffler in the BORLA® S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK® sound level (louder than S-Type). BORLA®'S Polyphonic Harmonizer Technology 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. Built from premium T-304 stainless steel, superior to T-400 series (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 Polyphonic Harmonizer with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. ATAK Polyphonic Harmonizer 2019-2026 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic Transmission 2 & 4 Wheel Drive With Borla "S-TYPE" Cat-Back System 2019-2026 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic Transmission 2 & 4 Wheel Drive With BORLA® "S-TYPE" Cat-Back™ System.

• Can be used in select Borla(r) GM truck S-Type sound level systems to attain the ATAK(r) sound level
• Features Polyphonic Harmonizer technology

Upgrade a compatible Borla S-Type Cat-Back system with the Borla 60680 ATAK Polyphonic Harmonizer. Designed for select 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 models equipped with the 6.2L V8 and automatic transmission, this replacement component increases the exhaust sound level from S-Type to ATAK character. It is compatible with both two-wheel-drive and four-wheel-drive configurations when used with the specified Borla S-Type system.

Borla Polyphonic Harmonizer Technology uses patented internal tubes with different diameters and lengths to create multiple exhaust notes that harmonize into a clean, rich, full-bodied tone. The harmonizer works with the existing Borla muffler system to produce the aggressive ATAK sound while maintaining the fit, quality, and performance expected from Borla. Premium T-304 stainless steel provides excellent corrosion resistance and durability, while smooth mandrel bends support efficient exhaust flow. CNC manufacturing helps ensure precise fitment, and the product is backed by Borla's Million-Mile Warranty.

• Fitment: Select 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with a 6.2L V8, automatic transmission, and 2WD or 4WD
• System Compatibility: Designed for use with compatible Borla S-Type Cat-Back systems
• Sound Upgrade: Raises the sound level to Borla ATAK character
• Construction: Premium T-304 stainless steel with smooth mandrel bends and CNC-formed components
• Technology: Patented Polyphonic Harmonizer design creates multiple harmonized exhaust notes
• Performance: Supports efficient exhaust flow and strong system response
• Warranty: Backed by Borla's Million-Mile Warranty
• Regulatory Information: Not CARB approved; emissions certification is not applicable

What's Included: One Borla 60680 ATAK Polyphonic Harmonizer. Installation hardware and additional components may depend on the existing Borla S-Type Cat-Back system.

Fitment: Fits select 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 models with the 6.2L V8, automatic transmission, and two-wheel drive or four-wheel drive. Verify the vehicle configuration and existing Borla S-Type Cat-Back system before ordering.

Features:

• Compatible with select Borla S-Type Cat-Back systems to achieve ATAK sound level
• Patented Polyphonic Harmonizer Technology produces a clean, rich, full-bodied exhaust tone
• Premium T-304 stainless steel construction provides excellent durability and corrosion resistance
• Smooth mandrel bends and CNC manufacturing support efficient flow and precise fitment

Fitments:
2019 Chevrolet Silverado 1500 High Country
2019 Chevrolet Silverado 1500 LTZ
2019 GMC Sierra 1500 AT4
2019 GMC Sierra 1500 Denali
2019 GMC Sierra 1500 SLT
2020 Chevrolet Silverado 1500 Custom Trail Boss
2020 Chevrolet Silverado 1500 High Country
2020 Chevrolet Silverado 1500 LT Trail Boss
2020 Chevrolet Silverado 1500 LTZ
2020 Chevrolet Silverado 1500 RST
2020 GMC Sierra 1500 AT4
2020 GMC Sierra 1500 Denali
2020 GMC Sierra 1500 SLT
2021 Chevrolet Silverado 1500 Custom Trail Boss
2021 Chevrolet Silverado 1500 High Country
2021 Chevrolet Silverado 1500 LT Trail Boss
2021 Chevrolet Silverado 1500 LTZ
2021 Chevrolet Silverado 1500 RST
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 Denali
2021 GMC Sierra 1500 SLT
2022 Chevrolet Silverado 1500 High Country
2022 Chevrolet Silverado 1500 LT Trail Boss
2022 Chevrolet Silverado 1500 LTZ
2022 Chevrolet Silverado 1500 RST
2022 Chevrolet Silverado 1500 ZR2
2022 GMC Sierra 1500 AT4
2022 GMC Sierra 1500 AT4X
2022 GMC Sierra 1500 Denali
2022 GMC Sierra 1500 Denali Ultimate
2022 GMC Sierra 1500 SLT
2023 Chevrolet Silverado 1500 High Country
2023 Chevrolet Silverado 1500 LT Trail Boss
2023 Chevrolet Silverado 1500 LTZ
2023 Chevrolet Silverado 1500 RST
2023 Chevrolet Silverado 1500 ZR2
2023 GMC Sierra 1500 AT4
2023 GMC Sierra 1500 AT4X
2023 GMC Sierra 1500 Denali
2023 GMC Sierra 1500 Denali Ultimate
2023 GMC Sierra 1500 SLT
2024 Chevrolet Silverado 1500 High Country
2024 Chevrolet Silverado 1500 LT Trail Boss
2024 Chevrolet Silverado 1500 LTZ
2024 Chevrolet Silverado 1500 RST
2024 Chevrolet Silverado 1500 ZR2
2024 GMC Sierra 1500 AT4
2024 GMC Sierra 1500 AT4X
2024 GMC Sierra 1500 Denali
2024 GMC Sierra 1500 Denali Ultimate
2024 GMC Sierra 1500 SLT
2025 Chevrolet Silverado 1500 High Country
2025 Chevrolet Silverado 1500 LT Trail Boss
2025 Chevrolet Silverado 1500 LTZ
2025 Chevrolet Silverado 1500 RST
2025 Chevrolet Silverado 1500 ZR2
2025 GMC Sierra 1500 AT4
2025 GMC Sierra 1500 AT4X
2025 GMC Sierra 1500 Denali
2025 GMC Sierra 1500 Denali Ultimate
2025 GMC Sierra 1500 SLT
2026 Chevrolet Silverado 1500 High Country
2026 Chevrolet Silverado 1500 LT Trail Boss
2026 Chevrolet Silverado 1500 LTZ
2026 Chevrolet Silverado 1500 RST
2026 Chevrolet Silverado 1500 ZR2
2026 GMC Sierra 1500 AT4
2026 GMC Sierra 1500 AT4X
2026 GMC Sierra 1500 Denali
2026 GMC Sierra 1500 Denali Ultimate
2026 GMC Sierra 1500 SLT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1