300zx Ultimate hiram kit. Carbon upper plenum:Add cast holley upper 5" to single 4") and

5" to single 4")  and some fab work to work with stock intercooler piping

-65mm Throttle bodies

Compatible with DRIVE BY WIRE or DRIVE BY CABLE

Select 6an option for build you own waterline setup with included parts shown in first photo

Comes with oil fill plug

300zx Ultimate hiram kit. Carbon upper plenum:Add cast holley upper 5" to single 4") andIdeal port and runner design for mid to upper RPM flow characterstic in NA and boosted applications Parts needed: holley# 300 245 or select the carbon upper ( or purchase our new sheet metal low ram on the site) Requires our top feed kit and valve covers Heater core hoses must be reworked Timing covers and backing plates need to be trimmed or removed Does not clear factory hood