Exhaust is easy. I can help with that, and uppipe should probably go at the same time.
I'd like to see watch the plug job as I haven't done one on these cars. Which plugs did you go with? Just wondering because GRM had an interesting observation on the aftermarket ones...
http://www.grassrootsmotorsports.com/stock%20tips.html
I still need to get the guage install completed. Trade you time...