Davis Unified Ignition SOS Coil Packs - Gen3 Hemi Ram 1500 TruTrac Featuring 1 7/8" or 2"

Featuring 1 7/8" or 2" Primaries with 3" collectors

Temperature regulation is achieved by movement of the precision-engineered piston which opens and closes the thermostat's coolant flow to maintain the desired temperature

This system is configured as a single stage system by default with 50-400hp jetting

mega cab) uses a patented design of parallel-axis planetary helix gears to provide a quiet

so you get more passes out of them

Davis Unified Ignition SOS Coil Packs - Gen3 Hemi Ram 1500 TruTrac Featuring 1 7/8" or 2"Davis Unified Ignition SOS ignition coil packs feature advanced technology to pack more electrifying voltage into them for pure ignition performance. The SOS (Sultans of Spark) ignition coils are designed with increased windings to boost spark output up to 40,000 Volts! That is a 60 percent increase in spark energy over the 25,000 Volts produced by the stock ignition coils. The higher voltage, along with an increased spark duration, allows spark plug