Cometic MLX Head Gasket .055" – Audi DAZA/DNWA 2.5T FSI (83.5mm Bore)

Overview

The Cometic MLX Head Gasket (Part No. C14145-055) is purpose-built for high-performance Audi 2.5T TFSI DAZA and DNWA engines. With a 5-layer multi-layer steel construction and 83.5 mm bore diameter, this gasket delivers maximum sealing reliability for high-boost or high-compression builds. The .055" (1.40 mm) compressed thickness is ideal for maintaining proper quench and deck height with forged pistons or machined blocks.

Cometic’s MLX design utilises a combination of embossed and coated stainless steel layers to accommodate engine movement, prevent blow-by, and maintain a consistent seal under extreme heat and pressure — making it the trusted choice for serious street and motorsport applications.

Key Features

• Multi-layered (5-layer) stainless steel construction for superior sealing
• 0.055" (1.40 mm) compressed thickness – ideal for performance engine builds
• 83.5 mm bore size to match oversize forged pistons
• Embossed and coated layers for maximum sealing under boost or detonation
• Round bore shape compatible with standard DAZA/DNWA cylinder configurations
• No orientation – installs either way up

Technical Specifications

What's Included

• 1 × Cometic MLX Cylinder Head Gasket – 83.5 mm Bore / 0.055" Thickness

Vehicle Compatibility

• Audi RS3 (8V / 8Y) – 2.5 TFSI DAZA / DNWA
• Audi TT RS (8S) – 2.5 TFSI DAZA
• Compatible with EA855 EVO engines using 83.5 mm bore forged pistons