Gibson Cat-Back Single Exhaust System - 4 in Tailpipe - 5 in Tips - GM Fullsize Truck 2001-07 RU001003L 2L Performance

2L Performance

175-400 lb/in Spring Rate

and turn signal switch

These high-compression pistons are compatible with most aftermarket 23° heads and are ideal for drag racing and circle track applications

Gibson Cat-Back Single Exhaust System - 4 in Tailpipe - 5 in Tips - GM Fullsize Truck 2001-07 RU001003L 2L PerformanceGibson 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