Borla 140577BC Cat-Back Exhaust System ATAK for Silverado/Sierra 1500

The Borla 140577BC ATAK Cat-Back Exhaust System features a 3.5-inch diameter inlet transitioning to dual 2.25-inch outlets, delivering aggressive ATAK sound with no interior drone. ATAK (Acoustically Tuned Applied Kinetics) technology is designed for high-performance enthusiasts who prioritize exhaust sound, delivering the highest available decibel levels in Borla's street-legal lineup while maintaining clarity at high volumes.

Key Features:

• Single 4-inch round black chrome on T-304 stainless steel tips on each tail pipe
• Patented straight-through and multi-core technology designed to unleash hidden horsepower
• Ultra-smooth mandrel bends ensure maximum flow and power with precision CNC manufacturing for accurate fit
• Premium T-304 stainless steel construction, superior to T-400 series knockoffs like 409
• Increased exhaust velocity adds power, driving excitement, and fuel economy
• Backed by Borla's Million-Mile Warranty

Borla Cat-Back exhaust systems use engine-specific mufflers designed, tested, and optimized for particular vehicles to increase overall sound level and performance. Using Borla Stainless Steel Polish is not recommended with black chrome tips; clean with hot water and a microfiber cloth.

System includes front pipe assembly, muffler assembly, dual side pipe assembly, one 3.50-inch stainless steel Accuseal clamp, and two 2.25-inch stainless steel Accuseal clamps. Made in the USA.