GT350Stang

what all do they do when they tune it?

phalcone

i need to get my s/c car tuned also... but you NEED some kind of a/f guage if you add boost . wide band are faster , & accurate i dont have a wide band in my car , but my guage is working ok ... it bounces all over , I just make sure it doesnt stay in the red .. a super charger will run you lean in an instant & you will meltdown the internals if your not careful.. even with a proper tune i want to have an a/f guage .

GT350Stang

if you have one of those self programmers is it hard to do yourself?