lol yup very addicting..... I have dont pretty much everything to my car that doesnt involve injectors, turbos, or removing the motor.... no nitrous tho.. , no lighter drive shaft or gears but hope to get these two next.... :-) speed and the handle on the Z is the best feeling :-) well besides sex unlike sex your get rewarded for finishing 1st at a race.. :-) lol i remember i read this in some write up somewhere lol