Extra Fire Power kit for the 3.8L
I hear you on that it could go the way of E3s. Just with out the problems of E3s. For 180 bucks for the coil and wires it's worth the try. A engine needs spark fuel and air. With the bigger gap from a .5 to a .65 on the plug it burns the fuel faster and gives a better response. Unlike E3s they do use products like this in race applications.
Also, if the main problem this overcomes is worn out equipment then you will be spending the $200 every year or so to maintain the performance.
I know it looks like I am hating on this product, just don't see any sort of actual proof that it does anything that a regular tuneup wouldn't do.
Last edited by jeepin_tiger; Aug 15, 2012 at 06:12 PM.
Once you replace the coil you wouldn't need to replace it the wires is 100 bucks and OEM wires are about 50 bucks so it's not much of an increase. It might increase peak horse and torque but just move it earlier in the band would be fine with me.
I have 129,000 on my '09 JK and needed to replace the wires. This wire set is top shelf. custom length, factory crimps, numbered, high temp covering, look good, should easily last another 100+
I also replaced the plugs with Autolite double platinum and gapped them to .065 as directed to do in the coil pack instructions.
After 3 tanks of fuel I see no improvement in fuel economy. I run a 4" rancho lift and 35" KM2's so 15 is about as good as I can get in everyday driving. So far there is no improvement on that number.
Additionally there is no "seat of the pants" detectable improvement in performance.
If you need wires I would highly recommend these wires. They are only about $20 more than the Mopar set and they are well worth the money.
I cannot recommend the coil pack unless possibly you have a bad coil and need to replace it anyway.
I also replaced the plugs with Autolite double platinum and gapped them to .065 as directed to do in the coil pack instructions.
After 3 tanks of fuel I see no improvement in fuel economy. I run a 4" rancho lift and 35" KM2's so 15 is about as good as I can get in everyday driving. So far there is no improvement on that number.
Additionally there is no "seat of the pants" detectable improvement in performance.
If you need wires I would highly recommend these wires. They are only about $20 more than the Mopar set and they are well worth the money.
I cannot recommend the coil pack unless possibly you have a bad coil and need to replace it anyway.



