EXCEPT ZR2 & AT4X. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 for Crew Cab w/Standard Bed (6' 7") 157" WB 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 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. Using BORLA Stainless Steel Polish p# 21499 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.

Additional Information

ATAK Cat-Back '24-'26 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 Has Valve Sim.

Application Summary

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.

Part Type

Exhaust System Kit

Features and Benefits

• Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles
• Borla(r) system has a Valve Simulator
• EXCEPT ZR2 & AT4X models. Fits Factory Split Rear Exit Vehicles ONLY.
• Installation REQUIRES removal of the Factory Valance Tips
• System features Polyphonic Harmonizer technology. Add Muffler 60679 to attain the S-Type sound level

Product Details

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles
• Borla(r) system has a Valve Simulator
• EXCEPT ZR2 & AT4X models. Fits Factory Split Rear Exit Vehicles ONLY.
• Installation REQUIRES removal of the Factory Valance Tips
• System features Polyphonic Harmonizer technology. Add Muffler 60679 to attain the S-Type sound level

Mount an offensive to regain optimum acoustics with Borla ATAK cat-back systems. Your modern muscle car will not only be performance-enhanced, but also acoustically tuned to a loud, aggressive exhaust note. ATAK (acoustically tuned applied kinetics) technology produces the highest dB levels, avoiding distortion to retain clarity.

Tuned like a graphic equalizer, these cat-back systems are custom-tuned for your specific vehicle, delivering the most desirable sound to your ears. Plus, you retain all of the power-adding capabilities of Borla's multi-core design. The exhausts are handmade by master craftsmen from premium 300-Series austenitic stainless steel and ultra-smooth, mandrel-bent piping.

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

Detailed Compatibility

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.