I have been installing the GTM stage 2 twin turbo kit in my garage on my car for about the last week. I should have the car done by the end of this weekend, and i intend to do a full review on it. I will give all the info from the pros and cons, to how the car feels, and the customer service that I was givin when I ran into problems and had to call Sam. I will tell you this I don't know about other kits but with the GTM I had to drill 2 holes and tap them in my passanger head. This wasn't hard at all SAM sends a template with his kits for this and my god it is idiot proof. Also you have to drill the Upper oil pan for the return lines for the turbo. Like I said by the end of the weekend I will have up a full review thread and give my thoughts and opinions on this kit and that should help you choose which one you want.
Frank
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