Borla ATAK Cat-Back Exhaust for 2022-2023 Silverado ZR2 / Sierra AT4X (6.2L) 147.5in WB - 140915

Fits 2022-2023 Chevrolet Silverado 1500 ZR2 and GMC Sierra 1500 AT4X (6.2L) with Crew Cab, Short Bed, and 147.5-inch wheelbase.

The Borla ATAK Cat-Back exhaust system (MPN 140915) is specifically engineered for the 6.2L V8 powerplants found in the ZR2 and AT4X, providing the most aggressive sound level in the Borla lineup. This 3.5-inch diameter system features dual 2.75-inch turn-down tailpipes designed for maximum ground clearance during off-road articulation. It utilizes Borla's patented Polyphonic Harmonizer Technology, which uses internal pipes of varying lengths and diameters to create a rich, full-bodied exhaust note that eliminates interior drone.

Built for durability and performance, the system is constructed from premium T-304 austenitic stainless steel, outperforming 400-series knockoffs in corrosion resistance and longevity. Ultra-smooth mandrel bends and CNC manufacturing ensure precise fitment and unrestricted exhaust flow. For owners looking to reduce the volume to the "S-Type" level later, this system can be modified by adding muffler 60679 behind the main ATAK unit.

• System Type: Cat-Back with Polyphonic Harmonizer Technology
• Tubing Diameter: 3.5in to dual 2.75in
• Tailpipe Style: High-clearance turn-down tips
• Material: T-304 Austenitic Stainless Steel
• Sound Level: ATAK (Most Aggressive)
• Installation: Direct bolt-on to factory mounting points
• Manufacturer Part Number: 140915