1. 155hp 2700-2800 lbs aprox
2. 95-98 is what you want, 94 is an automatic S13 (older style) convertable
3. transmissions seem to be crappy
4. turbo is the only way to go! don't put all your hope in an exhaust system and air filter
5. in a 95-98, i have no clue. the only thing i check is to see if it has a limited slip differential <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt='
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another forum is at freshalloy.com, lots of tech info, but less chatty