Just for reference:
GM Performance parts warranty info
http://www.gmgoodwrench.com/gmgoodwr...fparts/faq.jsp
Ford Racing Performance parts warranty info (blank right now)
http://www.fordracing.com/parts/
Toyota Racing Development parts warranty info (pretty good on the superchargers)
http://www.trdusa.com/warranty.asp
NISMO Performance Parts Warranty (couldn't find it on
www.nissan-usa.com)
http://www.courtesyparts.com/policy_warranty.html