Stock coil packs on the 3.6L Pentastar top out around 25,000 volts, which is enough for factory tune but leaves little margin once bolt-ons start adding load. DUI's SOS coils use additional windings to push output up to 40,000 volts, a 60 percent gain, for a hotter, longer-duration spark.

DUI 45550 SOS Ignition Coil Pack Set Features:

• Fits 2011-2018 Ram 1500 and Jeep Wrangler JK models with the 3.6L engine.
• 40,000-volt output, a 60 percent increase over the stock 25,000-volt coil.
• Square, epoxy-filled coil pack design.
• No-drill direct installation.
• Black.
• Sold as a set of 6.