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Motordyne Iso Thermal™ Plenum Spacer Kit, 03-05* 350Z

Motordyne Iso Thermal™ Plenum Spacer Kit, 03-05* 350Z
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Part #:11-3097
Price: $289.87
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California Residents: Unfortunately California has disallowed Motordyne from selling this within California. Orders requested for California will be canceled.

This 5/16" Motordyne Performance Iso Thermal™ Plenum Spacer reduces the effect of power robbing heat soak, substantially reduce upper and lower plenum temperatures. Cooler intake air temperatures increase air density and reduces the tendency for detonation or ping. Manufacturer tests have shown an added 11-13 HP (even more for turbo or supercharged). The intake growl will also sound stronger and lower. All gaskets, hardware, and instructions are included for simple installation.

Thermal Components:
  • The first component is an Aramid thermal isolating gasket that is installed between the lower plenum and intake manifold, which significantly reduces heat soak.
  • The second component is the throttle body Coolant Control Valve (CCV). The CCV allows you to selectively heat (or not heat) the plenum assembly. With local weather temperatures below 55°F the valve is left open. In warmer weather the valve can be closed for maximum thermal benefits.
  • The third thermal management component is the Iso Thermal™ plenum internal supports. The plenum internal supports are self retaining and self sealing. In addition to providing sealing and support, the internal supports are thermally non-conductive to effectively shut down heat transfer through the six plenum internal posts.

Stealth Technology:
The Iso Thermal™ Spacer is fully compatible with all stock and aftermarket strut bars, and the original engine cover fits correctly without modification. With the engine cover and strut bar in place the engine bay looks completely stock. When installed, most people looking at them wouldn't even know a high performance modification was there. The CNC cut spacers conform very tightly to the stock plenums complex shape for a professionally engineered look. They are cut from alloy aluminum and can resist any amount of thermal soak or boost. A grit blast finish allows them blend in with the OEM sand cast plenum.

Smog Legality:
Performance Intake Components may not be street/smog legal in some areas. Check with the motor vehicle code/department in your area.

Model Guide:
Nissan 350Z

*Model Restriction:
For all 03-04 models and 05 non-anniversary models only. Will not fit on 35th Anniversary models or any early 350Z equipped with the Rev-Up motor. Please call for more details.

Code Guide:
Nissan Z33

Year Guide:
2003, 2004, 2005*

Some parts may not fit every version of every year listed. See product Title & Description for any application breakdowns or customization options, and contact us with any questions.

  • 2003 Nissan 350Z
  • 2004 Nissan 350Z
  • 2005 Nissan 350Z
Attention California Customers:
WARNING: Cancer and Reproductive Harm -