They are one of the best out there but unless you have some major mods I dont think it is worth it, I mean there are other routes you could take. Post up your mods, a mail order pcm may be a good route if you can't find someone locally.Originally Posted by basshead42
It takes a while to get comfortable tuning, on average I'd say it takes a couple years to get to the point where your fairly good at tuning.
A happy knob lets you adjust the cars timing on the fly, but doing so without scanning your car for knock is risky.
