Borla - 140997BC

Cat-Back(tm) Exhaust System - ATAK(r)

ATAK(r) Cat-Back(tm) '24-'25 Silv./ Sierra 1500 (EXC/ZR2&AT4X) 6.2L V8 AT 2&4WD Ext/Cab Std/Bed (6' 7") 147.4"/ Crew Cab Short Bed (5' 9") 147.4"/Factory Rear Exit/Add 60706 For Crew Cab Std/Bed (6' 7") 157"/Borla(r) Has Valve Sim.

EXCEPT ZR2 & AT4X. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 for Crew Cab w/ Standard Bed (6' 7 in.) 157 in. WB vehicles. This BORLA® system has a valve simulator to prevent the Check Engine Light from coming on. The 3.5 in. into dual 2.75 in. system features the 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 in. round black chrome on T-304 stainless steel tips on each tail pipe. 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.

• EXCEPT ZR2 & AT4X models. Fits Factory Split Rear Exit Vehicles ONLY.
• BORLA system has a Valve Simulator
• 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