MSD - Allows for running a redundant ignition system This Flowmaster Force II® cat-back

This Flowmaster Force II® cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks with the 4

Coil Spring - Coil-Over - 3 in ID - 12 in Length - 125 lb/in Spring Rate - Steel - Silver Powder Coat - Each

Torsion Arm - Front - Passenger Side - 7/8 in Spline - 12 in Long - Hardware Included - Aluminum - Black Anodized - Micro / Mini - Each

5 in Diameter - 1-1/8 in x 26 Spline - Sprung Hub - Metallic - V8 - Ford Mustang 1986-2000 - Kit

MSD - Allows for running a redundant ignition system This Flowmaster Force II® cat-backRunning redundant ignition systems gives you piece of mind during long races, but how do you swap the coil wire to the back up ignition? The MSD Automatic Coil Selector solves this problem.