Cometic Gasket Nissan RB20/25 .030 MLS Exhaust Manifold Gasket — Fits Nissan RB Engines

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SKU: CGSC4177-030
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Sale price$27.85 Regular price$30.94
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Ultimate Sealing for Nissan RB Engines

Ensure your Nissan RB20 or RB25 engine performs at its peak with the Cometic Gasket .030 MLS Exhaust Manifold Gasket. Engineered for high-boost and high-heat environments, this Multi-Layer Steel (MLS) gasket is the gold standard for performance builds. It provides a superior seal that prevents exhaust leaks, even under extreme cylinder pressures.

Why Choose Cometic MLS Gaskets?

  • Multi-Layer Steel Construction: Designed to withstand extreme heat cycles without burning through or pushing out.
  • Precision Fit: Specifically engineered for RB20/25 port dimensions (1.575" x 1.340").
  • No Sealant Required: The embossed layers create a perfect mechanical seal against the head and manifold.
  • Corrosion Resistant: Built to last, maintaining torque specs even in demanding conditions.

Whether you are running a stock turbo or a massive aftermarket setup, this gasket handles the shearing forces between different materials with ease. The .030" thickness ensures optimal clearance and sealing integrity. Say goodbye to pesky exhaust leaks that rob your engine of power and spool time. By choosing Cometic, you are investing in a proven solution trusted by engine builders worldwide. Upgrade your Nissan build with premium components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Ultimate Sealing for Nissan RB Engines

Ensure your Nissan RB20 or RB25 engine performs at its peak with the Cometic Gasket .030 MLS Exhaust Manifold Gasket. Engineered for high-boost and high-heat environments, this Multi-Layer Steel (MLS) gasket is the gold standard for performance builds. It provides a superior seal that prevents exhaust leaks, even under extreme cylinder pressures.

Why Choose Cometic MLS Gaskets?

  • Multi-Layer Steel Construction: Designed to withstand extreme heat cycles without burning through or pushing out.
  • Precision Fit: Specifically engineered for RB20/25 port dimensions (1.575" x 1.340").
  • No Sealant Required: The embossed layers create a perfect mechanical seal against the head and manifold.
  • Corrosion Resistant: Built to last, maintaining torque specs even in demanding conditions.

Whether you are running a stock turbo or a massive aftermarket setup, this gasket handles the shearing forces between different materials with ease. The .030" thickness ensures optimal clearance and sealing integrity. Say goodbye to pesky exhaust leaks that rob your engine of power and spool time. By choosing Cometic, you are investing in a proven solution trusted by engine builders worldwide. Upgrade your Nissan build with premium components from GGCRACING.

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Ultimate Sealing for Nissan RB Engines

Ensure your Nissan RB20 or RB25 engine performs at its peak with the Cometic Gasket .030 MLS Exhaust Manifold Gasket. Engineered for high-boost and high-heat environments, this Multi-Layer Steel (MLS) gasket is the gold standard for performance builds. It provides a superior seal that prevents exhaust leaks, even under extreme cylinder pressures.

Why Choose Cometic MLS Gaskets?

  • Multi-Layer Steel Construction: Designed to withstand extreme heat cycles without burning through or pushing out.
  • Precision Fit: Specifically engineered for RB20/25 port dimensions (1.575" x 1.340").
  • No Sealant Required: The embossed layers create a perfect mechanical seal against the head and manifold.
  • Corrosion Resistant: Built to last, maintaining torque specs even in demanding conditions.

Whether you are running a stock turbo or a massive aftermarket setup, this gasket handles the shearing forces between different materials with ease. The .030" thickness ensures optimal clearance and sealing integrity. Say goodbye to pesky exhaust leaks that rob your engine of power and spool time. By choosing Cometic, you are investing in a proven solution trusted by engine builders worldwide. Upgrade your Nissan build with premium components from GGCRACING.

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