1973-1974 Chevrolet K10 Pickup Header Back Exhaust System Hooker 16526HKR x-pipe 1973-1979 GMC Jimmy 350 CID

1973-1979 GMC Jimmy 350 CID

BLC-140-SS1F

Improves Torque

1968-1968 Pontiac Firebird 350 CID

1973-1974 Chevrolet K10 Pickup Header Back Exhaust System Hooker 16526HKR x-pipe 1973-1979 GMC Jimmy 350 CIDOverview 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. Features Mandrel Bent Tubing Eliminates Restrictions in Bends and Improves Exhaust Flow Reduces Backpressure Improves Engine Efficiency Hardware