Well you have to remember that for the professional tuners it's their living so telling you how to do it yourself means lost income. You can do your own research on the forums but there is something to be said for leaving some things to the pros, and believe me I am all for DIY and saving money. But making a mistake in tuning can cause a lot of very expensive damage so you have to weigh that. And of course speed always costs money, and you car is at the level where it's a lot of money to go faster, like you said.
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