If it comes with an orange box I would suggest keeping a spare 4 pin ECU in the glove box. Your parts house has em for cheap. I'm assuming you already have electronic ign. I'd get a hotter coil/ballast. I use a FBO coil and MP 1/4 ohm ballast and OE ECU & it starts/runs awesome. the power is pretty much from the coil/ballast combo & not the coil primary switcher (ECU) but people are raving about FBO's new ECU. EDIT If needed there is a pentastar ECU harness/pigtail assy for $28 in the BB for sale section page 6 which may or may not come with the 2 terminal nominal 1.25 ohm ballast but was not shown in the pic
This is the set i bought. It comes with a new resistor.
