hey ive been trying to research some info on megasquirt so i can tune my cars fuel/timing problems..i dont understand fully how the install works.is it a universal unit that just splices into any car and hooks up to a laptop..also does it do everything it says it does without spending a fortune.i find it hard to believe i can get the whole unit for under 350 when most standalones are 1500+. i just kinda need some basic input on anyone using one if possible with the details of install etc..thanks