This Large Bore-HD exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and throttle response. Features OE-style bayonet hangers to maintain stability during high-rev vibration and high-temp conditions. Provides hassle-free installation.
Large Bore-HD 4 IN Dual Stainless Steel Downpipe Exhaust System w/ Black Tips GM Diesel Trucks 17-19 V8-6.6L (td) L5P
2017-2019 Chevrolet Silverado 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 Chevrolet Silverado 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V)