Fits 1972-1974 Dodge Ramcharger, 318-360ci Header Back Exhaust System 16551HKR lug-nuts-and-bolts 15 Outside diameter (mm) (Tensioner

15 Outside diameter (mm) (Tensioner / Pulley): 105

25/8 V 1973 - 1974 Chevrolet K10 Suburban 4

off a roll cage or on a steering column

4 V8 2012 - 2014 Dodge Challenger R/T Classic 345/5

Fits 1972-1974 Dodge Ramcharger, 318-360ci Header Back Exhaust System 16551HKR lug-nuts-and-bolts 15 Outside diameter (mm) (TensionerDesigned 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 Included