1973-1974 Chevrolet/GMC Blazer/Jimmy/Yukon (4WD): 265-400, Exhaust System

Designed for Hooker Competition header back applications. This system uses 2.25-inch 16-gauge aluminized tubing to reduce back-pressure and improve engine efficiency. The system is mandrel bent to eliminate any crush sections in the tubing to help maximize the exhaust flow for better performance.