You've got an intake, an exhaust, and a programmer but are still hungry for more bolt-on performance. Most people turn attention to the ignition next. To get more performance out of your classic muscle car you have installed a hotter coil, performance distributor, and a high-dollar wire set. However, modern-day engines have no distributor, nor coil, nor even spark plug wires, because late model trucks use distributorless coil-on-plug ignition systems.
Thankfully the good folks over at Performance Distributors, the same company that makes the high performance D.U.I. distributors that you are probably familiar with, have come up with a solution for the late-model Ford truck owner who wants more out of his ignition system. The Sultans of Spark (or S.O.S. for short) coil packs pack an amazing punch, putting out 40,000 volts - nearly a 60-percent increase over the 25,000 volts the factory packs produce. The increase in spark voltage along with an increase in spark duration will allow you to open up the spark plug gap, resulting in a better fuel burn, more power, and an increase in fuel economy.
By the time you read this, we will have put many thousands of test miles on a set of S.O.S. coils that we installed on our 2007 F-150 test truck; so be sure to check out our website at www.off-roadweb.com for an update on our real-world mileage and performance increases from the S.O.S. coils.