2024-2025 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' 10") 147.4" Wheelbase. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 For Crew Cab With Standard Bed (6' 7") 157" Wheelbase. BORLA® System Has A Valve Simulator.

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" into dual 2.75" system features the classic S-Type sound level with no drone inside the vehicle. Replace the small muffler behind the primary muffler in this BORLA® S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK® sound level (louder than S-Type). Optional True Dual Cat-Back™ system available. This system features 3.5" black chrome on T-304 stainless steel tips. 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. Systems with bright chrome on T-304 stainless steel tips, carbon fiber tips, and systems that reuse the original equipment tips are also available. BORLA® Cat-Back™ and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed 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 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.

Link to installation instructions