Thermal Gaskets PTFE 3 mm – Thermoshield Intake & Throttle Body Gaskets

Thermal gaskets made from 3 mm PTFE (Teflon) significantly reduce heat transfer between the cylinder head, intake manifold, throttle body and plenum. This helps stabilise intake air temperatures, improve long-term reliability of engine components, and maintain consistent performance even under demanding conditions.

Why choose PTFE thermal gaskets?

• Outstanding thermal insulation – PTFE minimises heat conduction, keeping the intake system cooler for longer.
• High temperature resistance – continuous operation up to approx. 260°C, with short-term peaks up to 300°C.
• Full chemical resistance – unaffected by fuels, oils, lubricants and common automotive fluids.
• Precision laser-cut fitment – perfectly matched bolt patterns and port shapes for popular Japanese engines (especially Honda).
• Long-term dimensional stability – PTFE does not degrade, swell or bond to aluminium surfaces.

Where are thermal gaskets used?

• Between intake manifold and cylinder head – reduces heat soak coming from the head.
• Between throttle body and intake manifold/plenum – prevents heat transfer into the throttle body housing.
• Mechanical & drive-by-wire throttle bodies – improves response stability and reduces warm-weather performance loss.

Thermal gaskets are a popular upgrade among tuners, but they also provide noticeable benefits in daily-driven vehicles. By lowering intake air temperature (IAT), they help maintain more consistent power delivery, reduce knock tendency, and improve overall engine longevity.

FAQ – Thermal Gaskets / Thermoshield Spacers

What’s the difference between a thermal gasket and a standard gasket?
Standard gaskets primarily seal the surface. PTFE thermal gaskets seal and insulate, dramatically reducing heat transfer between components.

Do they require modifications during installation?
No. Most PTFE gaskets are plug-and-play. Clean both mating surfaces, torque evenly, and verify that the extra 3 mm thickness does not interfere with brackets or hoses.

Do thermal gaskets increase power?
They do not add power directly. Instead, they help prevent heat soak, keeping intake air temperatures lower and power output more consistent — especially after extended driving.

What are the material limits?
PTFE is chemically inert, non-flammable and extremely stable. It withstands continuous heat up to ~260°C and short bursts up to ~300°C.

Which engines are these gaskets made for?
Each gasket is precision-cut for specific intake and throttle body applications used in popular Japanese engines. Check the individual product pages or contact us for detailed fitment assistance.