Exhaust is wrapped & sprayed with Dei silcone spray as well as installed. I decided to use the stock B13 harness so I did all the wiring last night for it to work on the engine. All you need to do is follow the instructions Snickers on G20.net has (How to: GTiR G20 P10 swap... - G20.net - Forums) If you use the awd tranny you will also need to swap one of your starter plugs as well as rewire the transmission plug (neutral switch). I'm currently finishing up with tracing and rewiring the transmission plug then I just need to switch harnesses on the engine/tranny.