The DC Sports Short Ram Intake System for your 2003-06 Nissan 350Z or 2003-2006 Infiniti G35 & 2007-2008 Infiniti G35 Coupe, is designed to be 50 State C.A.R.B compliant and is a great entry-level modification. The VQ35DE is often an under valued engine with the HR variant being the much more desired engine. But with the right modifications and finesse, the 03-06 350Z and 03-08 G35 Coupe can enjoy impressive induction noise and improved throttle response too.