EXCEPT ZR2 & AT4X models. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. This BORLA® system has a valve simulator to prevent the Check Engine Light from coming on. The 3.5" diameter 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®). Tips NOT Included, reuse factory tips. Systems that include tips are also available. BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (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. Give your Silverado or Sierra the power and sound it deserves, bolt on a BORLA® Best of all, BORLA® stands behind every system 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 |
| 2024-2026 |
Chevrolet |
Silverado 1500 |
High Country |
| 2024-2026 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
| 2024-2026 |
Chevrolet |
Silverado 1500 |
LTZ |
| 2024-2026 |
Chevrolet |
Silverado 1500 |
RST |
| 2024-2026 |
GMC |
Sierra 1500 |
AT4 |
| 2024-2026 |
GMC |
Sierra 1500 |
Denali |
| 2024-2026 |
GMC |
Sierra 1500 |
Denali Ultimate |
| 2024-2026 |
GMC |
Sierra 1500 |
SLT |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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