Originally Posted by Jessobear

This is not meant to call you dumb or anything, but you would never make this statement if you actually owned a car with an aftermarket turbo kit. There's always stuff coming loose, breaking, etc and the tuning is a total nightmare. The car rarely runs right. I know this because I used to own a car like this before selling it to get the Z.

Most people think you can drop a car off at a shop, pay them a few hundred dollars and a couple hours later have a tuned car. This could not be farther from the truth. This might be true on an N/A car where you're retaining the factory ECU and you're simply tweaking fuel and ignition slightly for peak power. With F/I, basically everything you have is out the window. Car manufacturers spend months perfecting the mapping on a dyno. With your own car, you end up with knock in odd places, rich and lean spots, etc.