Cometic C4177-060 MLS Exhaust Manifold Gasket for Nissan RB20/RB25 Engines

The Cometic C4177-060 is a high-performance Multi-Layer Steel (MLS) exhaust manifold gasket designed specifically for Nissan RB20DE, RB20DET, RB25DE, and RB25DET engines. Engineered to withstand extreme exhaust temperatures and pressures, this gasket provides superior sealing performance compared to traditional composite gaskets.

Key Features:

• Multi-Layer Steel (MLS) construction for maximum durability and heat resistance
• 0.060-inch thickness provides optimal compression and sealing
• Port dimensions: 1.575" x 1.340" for precise fitment
• Engineered for Nissan RB20 and RB25 engine families (naturally aspirated and turbocharged)
• Resists blowout and maintains seal integrity under high-temperature conditions
• Stainless steel construction prevents corrosion from exhaust gases

Cometic gaskets are manufactured using advanced materials and precision stamping processes to ensure consistent quality and reliable performance. The MLS design features multiple layers of embossed stainless steel that work together to create a superior seal while accommodating thermal expansion and engine movement. Ideal for both stock rebuilds and high-performance applications on Skyline and other RB-powered Nissan vehicles.