Description
Technical Specifications
EXCEPT ZR2 & AT4X. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 for Crew Cab with Standard Bed (6′ 7″) 157″ Wheelbase vehicles.
This 3.5″ into dual 2.75″ system features BORLA®’s aggressive ATAK® muffler and Polyphonic Harmonizer Technology which 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 with no drone inside the vehicle.
Replace the Polyphonic Harmonizer behind the muffler in this ATAK® system with muffler 60679 to attain the S-Type sound level (quieter than ATAK®).
This system features dual 3.5″ round black chrome on T-304 stainless steel tips on each tail pipe. Installation REQUIRES removal of the Factory Valance Tips.
Systems with bright chrome on T-304 stainless steel tips, carbon fiber tips, and systems that reuse the original equipment tips are also available.
Installation REQUIRES removal of the Factory Valance Tips.
Using BORLA® Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth.
| Pipe Diameter | Tip Size | Tip Exit |
|---|---|---|
| 3.5″, 2.75″ | 3.5″ | Truck Dual Split Rear Exit |
Installation
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Fitment
- EXCEPT ZR2 & AT4X models
- Fits Factory Split Rear Exit Vehicles ONLY
- Add Adapter 60706 for Crew Cab with Standard Bed (6′ 7″) 157″ Wheelbase vehicles
- System features Polyphonic Harmonizer technology. Add Muffler 60679 to attain the S-Type sound level
- Installation REQUIRES removal of the Factory Valance Tips
2019-2023 Chevrolet Silverado 1500/ GMC Sierra 1500 (EXCEPT ZR2 & AT4X) 6.2L V8 Automatic Transmission 2 & 4 Wheel Drive Extended Cab With Standard Bed (6′ 7″) 147.4″ Wheelbase/ Crew Cab With Short Bed (5′ 9″) 147.4″ Wheelbase. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 For Crew Cab With Standard Bed (6′ 7″) 157″ Wheelbase.






