Warning: Tuning devices mentioned here may not be legal for sale or use in California on any pollution controlled motor vehicles. Please see http://www.semasan.com/emissions for state by state emissions requirements.
In some cases, you might have reservations to dyno your vehicle due to reasons like "..but my engine is stock" or "...it doesn't need tuning, the guy I bought it from said he just had it tuned" or "it has a chip in it, but I don't know what kinda chip". We find the most common reason why people feel reserved is because they lack relevant knowledge and information about engine computer calibration.
