Due to Cosworth's tight tolerances around the stock fuel system on the 2003-2006 Nissan 350z with the Cosworth Intake Manifold w/ Carbon Plenum Covers, a spacer kit is required to fit aftermarket (taller) injectors and/or aftermarket fuel rails.
This kit includes everything needed to make the Cosworth intake manifold clear upgraded fuel systems:
* Aluminum intake manifold spacer
* Nissan OEM gasket
* SS Socket Head Cap Bolts