I ran a Painless, and would do it again. Plus it makes the intergration of the MegaSquirt look VERY nice and neat. Just remember to get NEW connectors for as much of the lamps and stuff as you can as that is where I found most of the copper rot (that green dust that you find when you cut an old corroded wire) that was the hardest part but now I have weatherpac type connectors on just about every thing. Also Spend a LARGE amount of time planning your wiring path, dont forget about how it will lay under the carpet, in the footwell, and protect it with proper support and looms. I used adel clamp every 10" or so on the long runs and I duct taped it in place where it runs under the carpet, I was really worried about it chaffing and shorting out I had that happen to me in a old 3rd gen camaro that had an unfused power lead running to the cooling fans thru the fire wall with no grommet, caught on fire while I was driving down the highway, and just for the record I DID NOT WIRE THAT CAR!!! Keith