I'll like to help, I also have a uppipe in my basement waiting
to go in.
As of my ability, the most complicated mod I 've done is the silencer mod and boost guage.
Let me know if you still want to do it yourself.
I was thinking Exeter, too. I read through the instruction
at VishnuTuning.com, and it should be okay to do if you
have a warm place to work in.
Tim