If this thread has been done to death please delete but everybody post your article links here so everyone can go to one place to get them...please.

What to do first http://www.jspec.com/240sxfaq.html
Tuning http://en.wikibooks.org/wiki/Category:Nissan_240SX
Filter test http://www.mkiv.com/techarticles/filters_test/2/
LSD install http://home.earthlink.net/~spoons/id13.html
http://www.nissanperformancemag.com/february04/240sx/
http://www.240edge.com/performance/tuning-bars.html
Seafoaming http://www.seafoamsales.com/motorTuneUpTech.htm
http://importnut.net/intropage.htm
Exhaust http://www.team-integra.net/sections...p?ArticleID=47
Spark plugs http://www.pdm-racing.com/features/plugs.html

 

cool more is better.