If you’ve been wanting to boost your Jeep’s engine output or improve its efficiency, you’ll want to know about the Sultans of Spark (SOS) coils from Performance Distributors. These coils increase voltage compared to the stock coils, which improves the combustion of the air/fuel mixture. You’ll appreciate the resulting performance and efficiency boost both on- and off-road. Here are two examples of Performance Distributors’ SOS coils for Jeeps.

Performance Distributors’ SOS coils for 4.7-liter V8 and 3.7-liter V6 engines generate 35,000 volts under load. That’s 10,000 more volts than a stock coil.

Jeep SOS Coils

If you have a Jeep powered by the 4.7-liter V8 or the 3.7-liter V6, Performance Distributors’ SOS coils offer a significant voltage increase. How much of an increase? Well, the company states that a stock coil generates 25,000 volts, whereas an SOS coil boosts that significantly to 35,000 volts under load. As a result, spark plug gaps can be increased to 0.065 inch, which improves throttle response, horsepower, and fuel mileage. Additionally, this leads to quicker starting and smoother idle.

This impressive increase is due in part to updated technology and increased coil windings. Each SOS coil mounts in the OEM location with no modifications required, and they’re made to last. For example, they feature brass terminals for improved conduction and corrosion resistance.

Performance Distributors’ SOS coils are available for the following Jeeps: 2006-2007 4.7-liter V8 Commander, 2006-2008 3.7-liter V6 Commander, 1999-2007 4.7-liter V8 Grand Cherokee, 2005-2008 3.7-liter V6 Grand Cherokee, and 2002-2008 3.7-liter V6 Liberty.

The SOS Cassette Coil fits 2000-2006 Jeep 4.0-liter engines and its engineered to boost voltage output by 15 percent.

Jeep 4.0-Liter SOS Cassette Coil

The Jeep 4.0-liter engine is legendary, and Performance Distributors has a way to boost the firepower of the 2000-2006 engines that use the cassette coil-on-plug ignition. It offers the same benefits as the company’s standard SOS coils, meaning it increases performance and efficiency, and installs in the OEM location. The SOS Cassette Coil is said to install easily and requires no modifications to the factory wiring. The increased coil windings are engineered to boost voltage output by 15 percent, which translates to a hotter, more intense spark at the plug. Plug gaps can be expanded to 0.040 inch, exposing more of the spark kernel to the air/fuel mixture for the most complete combustion possible.

The SOS Cassette Coil fits the following 4.0-liter-powered Jeeps: 2000-2001 Cherokee, 2000-2004 Grand Cherokee, and 2000-2006 Jeep Wrangler TJ.

SOS Coils Are Available For Many Other Applications

It’s worth noting that all SOS coils are covered by a one-year warranty from the date of purchase. SOS coils are also available for HEMI-powered Dodge, Ram, and Jeep vehicles; Ford 4.6-, 5.4-, and 6.8-liter engines; Ford 3.5- and 2.7-liter EcoBoost engines; and many more applications. For a complete list, visit Performance Distributors’ website.