I've purchased an AEM Brute Force Air Intake, but it has not been released yet. I've been waiting for months now…
Home Made K&N Pre-Charger: http://www.stu-offroad.com/airaid/air-2.htm
AEM Brute Force Air Intake from Quadratec: $230 http://www.quadratec.com/cgi-bin/sgin0101.exe?T1=17012+001&UREQA=1&UREQB=2&UREQC=3&UREQD=4&FNM=00&UID=2003022300591153
Throttle body spacer: $70
AEM: www.ok4wd.com $293.71 shipped
AEM: $253.94 shipped http://www.quadratec.com/cgi-bin/sgin0101.exe?T1=17012+001&UID=2003022411242975&UREQA=1&UREQB=2&UREQC=3&UREQD=4&FNM=10
ARB snorkel: $220.94 shipped http://www.quadratec.com/cgi-bin/sgin0101.exe?T1=17012+001&UID=2003022411242975&UREQA=1&UREQB=2&UREQC=3&UREQD=4&FNM=10
Full-size view of the AEM intake: http://www.quadratec.com//photos/p25573C.JPG
K&N FIPK kit $238.86 shipped http://www.performanceintl.com/shop/products.cgi?comp=kn&make=JEEP&model=WRANGLER&year=1998
K&N FIPK kit installation: http://www.rockcrawler.com/techreports/kn_fipk_tj/page2.asp