350z DE Motordyne Engineering 5/16" Iso Thermal Plenum SpacerView larger

350z DE Motordyne Engineering 5/16" Iso Thermal Plenum Spacer

This is the 5/16 Stealth Plenum Spacer Upgrade for the 03-06 350Z VQ35DE Engines. Gains from 12-14HP, simple and easy install. Works with OEM Strut Bar and Engine Cover. Iso Thermal Spacer Reduces Heak Soak and helps prevent power loss. Iso Thermal Gasket also allows upper and lower plenum to run cooler.

Old reference code: MD-PS-ISO

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This item has been discontinued by the manufacturer and is no longer available. For alternative products please contact us.

Please note: While longer bolts are included for the strut tower brace to clear the raised plenum, early 2003 models will require thinner bolts. These are not normally included with the kits from Motordyne, so we have added an option above to include an extra set of bolts for the 2003 MY.

By Dharmesh on 03/09/2017
Text: I was recommended to install a plenum spacer prior to uprev mapping. This spacer fit perfect and installed without no issue, still running 5k miles later without fault.
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