Gibson's Trail Kit is the perfect combination of our Single Swept Side's improved acceleration, maximum hill climbing, towing and passing power. However, it is also perfect for the outdoor enthusiast whose idea of a perfect truck is one that also can shine on the trail. This is our best performing Exhaust System with the best ground clearance. 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 looking results. No welding required. Backed by a Lifetime Limited Warranty.