Message: Conventional wisdom says its the K&N - but I almost bought a Z-tube. No matter what you get, remove the rubber flap to get cooler air to the intake, or else you're just pissing up a rope - you'd be better off putting a dropin on the stock intake.
2001 QC 4x4, 4.7,5 spd, LSD, 255/70-15's, K&N Gen II Intake, Robert Shaw 180 Stat, Hanson Industries custom front bumper, Highflow cat