You'll get the same performance, it's just the name you're buying. The performance depends on turbo size also, there are many different size for turbos. If you put a turbo into an NA car, don't expect to just buy the turbo and slapping it on. You'll spend way more money on turbo charging a non-turbo car than just swapping it. If you go turbo, i suggest you swap it off with a turbo motor.
i dont want to have to hassle with motor swapping i know a mechanic that can prolly install it for me im just trying to get around 350hp or more and a turbo kit and exhaust seems to get me there this is the link of the turbo im thinking of buying if its worth it i know there is some parts missing but this see,s to be one of the best deals and it doesnt look like its junk
http://www.cxracing.com/mm5/merchant.mvc?S...250-90-SH250-90
here is the same kit.....just less
http://cgi.ebay.com/ebaymotors/T67-Turbo-k...sQ5fAccessories