Ford 4.6L EFI 1999-04 Sohc Red Ignition Coil so they are meant to

so they are meant to last

and drag racing

that because of their higher flexibility

The Speedmaster valve locks will fit any Speedmaster 10 degree retainer and are recommended for all race applications due to their superior strength

Speedmaster housing bolts a are made of 8740 alloy

Ford 4.6L EFI 1999-04 Sohc Red Ignition Coil so they are meant toThese coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to deliver10 15% more energy than the OEM coils. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. These are direct plug replacements for OEM coils. They feature bodies and or secondary towers and feature brass secondary contacts (except direct