Gibson 01-05 Chevrolet Silverado 2500 HD Base 6.0L 4in Cat-Back Single Exhaust - Aluminized Ignition>Starters Our exhaust manifold studs are

Our exhaust manifold studs are produced from aged 603 stainless steel and feature a 4mm internal hex head for easy installation

carries a lifetime limited warranty and is capable of increasing horsepower and torque

Please verify fitment if running another manufacturer

Size :   24x10

Every APEX Series intake is system-matched with an oversized air filter to maximize air flow and reduce maintenance intervals

Gibson 01-05 Chevrolet Silverado 2500 HD Base 6.0L 4in Cat-Back Single Exhaust - Aluminized Ignition>Starters Our exhaust manifold studs areGibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepower at low end (1800 to 3000 RPM). Horsepower gains average 10 15 and 15 20lb ft of increase torque. Hassle free, bolt on installation with professional