More Horsepower. The MSD Blaster Coil On Plugs make more power than the wimpy stock oem factory coils to help produce more horsepower from your modern DOHC modular motor and are a perfect match for stock engines and engines with minor performance upgrades.
Better Fuel Economy. The MSD Blaster Coil On Plugs produce a hotter spark that burns fuel more completely releasing all its potential energy translating into better fuel economy and more power.
Application. These MSD four valve Blaster Coil On Plugs are designed as a direct performance replacement for the 1999-2004 SVT Cobra, 2003-2004 Mach 1, and 2007-2009 Shelby GT500 Mustangs.
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