i didn't get the header cause another guy on here told me I dont need it. im just gonna open up the header a little, and try to increase power that way. also i dont have 70$ to spend on getting a dyno and all that jazz. I think ill just do simple little adjustments myself. im not new to nitro cars so its not like im gonna wreck my car trying something big. ill just stay small. i like to get the fastest car possible, but i dont like to spend money unless i win it somehow.lol. i wish i could win money. but the tornado is pretty fast stock and im good at getting a really good tune and with the new gears and pipe i ordered, i should be okay.