Quote Originally Posted by dieselNUBI View Post
how do they tune up? electronically with computers or manually ala hit or miss with careful listening to the tune of the engine?
SPEEDLAB has electronic diagnostic tools (including a dyno if needed) to help measure and calibrate your car.

Speedlab is a professional performance tuning shop which does a lot of it's own in-house upgrade kits including intake/exhaust and turbo kits.