http://www.youtube.com/watch?v=hC-Cb...ature=youtu.be

Tuned on the c5tgc fine actually. OS P4 plug installed and it felt even better. Needs a little fine tuning but for the most part, its tuned well and you can see that switching plugs dont hurt the the engine.

(needs a little fine tuning because I didn't want to take too much time shooting the video because my battery was dying)