Kinetix Racing KX-V-Z33 V+ Intake Plenum - Nissan 350Z 2003-2006 Z33 / Infiniti G35 03-06 / 03-07 Coupe V35 VQ35DE 270% stronger than previous plenum Incredible heat resistance, improved 170%, now up to 500 degrees F Pack of 2 ower operating temperatures - 50 degrees cooler than ANY aluminum plenum option Completely smooth underside with NO flow restrictions