i replaced alot of parts and the truck is running smoothly. but i still find it hard to get in another lane without slowing down. so i want more kick. THIS is what i understand about them. theres a prgrammer where it shows you codes,engine stats,parameters, all that crap i want to play with. OR theres a chip you plug in once, and never touch again. but i am not sure which one is for me. im a cheapazz but not on my truck. i just need to know if the chip will give me what im looking for, a significant boost that will appease me. and if the programmer is worth the money. btw. im mechanically inclines to figure out how to fix things, but when i play with this programmer i will be fairly new to what im doing. and i was thinking of a hypertech.