Ive tooled around on theyre website many times, looking at all the parts I can get for the Cobalt SS.

Well, I decided to order the ecotec performance book. Which tells you all sorts of things you can do to the ecotec, Well, I actualy ordered 2 by accident.

One day I get a call, verifying my order. He said, "are you sure you want 2?" I said "nope, Id only like 1, im sorry, i f**ked up."


They were very nice, and was awesome. I received my books within a week! Which I think was awesome, since good ol GM Performance said 5 - 8weeks!


Id recomend these guys to any of you, and I have actualy recomended them to my friends of the area.


Keep up the good work!

i just got one with my stage 4 order from intense, its pretty bad ass, but i wish it would go more indepth with the SS/SC LSJ instead of ecotec all around, but its awesome none the less

agreed. i personaly have the VVT, so..ya know.