DYNO DAY!

We did a comparison on a stock Jeep Cherokee XJ 4.0L with OEM injectors, 4port upgrades, and the 12port upgrade injectors. Very pleased with the results on how everything turned out! Note that this is a stock system, minus the fact that we have deleted the coil rail, and added in our cyclone electric fan system, so no fan clutch. Otherwise, everything else is bone stock. Let us know what you think!