#8226, "RE: 420a 5 speed swap conversion people need info" In response to In response to 9
You don't need a new wiring harness. Use the write up on Armond's page about how to wire the reverse lights and the speedometer. You tach is fine. The markings are right. The redline starts a little early since it's expecting a 6.5k redline but it still goes just fine to 7.2k once the ecu has been swapped. Something that anyone has failed to mention is that you need to swap the rear transmission mount. Also there is a wire that you will have to ground to get the car to start. Oh and something that you should do is get an ECU from the SAME year as your car. It's just easier and trust me you don't need any extra ecu's floating around.