The BLOX Racing Gen2 Hypertemp plenum spacer is a 1/2-inch hardware kit intended for 350Z applications and supplied as a hardware-only kit per the description. It provides a mid-thickness spacer option to alter plenum spacing for intake tuning or fitment on Gen2 setups, and is offered to installers who need that specific spacer height for the noted 350Z installation.
BLOX Racing Gen2 Hypertemp Plenum Spacer - 1/2in - 350Z-Hardware Kit Only