Cometic MLX Head Gasket (Single)
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Cometic MLX Head Gasket (Single) – Subaru EJ20 Turbo EJ205 – 93.5mm Bore
The Cometic MLX Head Gasket is a multi-layer stainless steel replacement for the factory head gasket on the Subaru EJ205 turbo engine used in the GD Impreza WRX. It has a 93.5mm round bore and comes in a choice of compressed thicknesses, so you can match the stock deck height or set the compression ratio on a rebuilt engine.
Cometic's MLX (Multi-Layer Xtreme) gasket adds a fold-over stopper layer around each bore. The stopper acts as a torque-limiting surface that stops the combustion seal from yielding, which suits high-boost engines with high cylinder pressure. Coated, embossed layers seal the coolant and oil passages.
Options
Compressed thickness: 0.76mm (.030"), 1.04mm (.041"), 1.52mm (.060"). Thicker gaskets lower compression; match the thickness to your engine builder's spec.
Note: Sold individually – an EJ engine needs two, one for each head. Installation by a professional is recommended.
Features
- Cometic MLX multi-layer stainless steel construction
- Fold-over stopper layer around each bore stops the combustion seal yielding under high boost
- 93.5mm round bore
- Choice of compressed thickness to suit stock or built engines
- Installed dry – no sealant needed
Kit Contents
- 1 x Cometic MLX cylinder head gasket
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Product
- Brand
- Cometic
- Part number(s)
- C4590-030, C4590-041, C4590-060
Details
- Product
- MLX cylinder head gasket
- Construction
- Multi-Layer Xtreme (MLX) stainless steel with fold-over stopper layer
- Engine
- Subaru EJ205 turbo (DOHC)
- Bore
- 93.5mm, round
- Compressed thickness
- 0.76mm (.030"), 1.04mm (.041"), 1.52mm (.060")
- Layers
- 4 layers at 0.76mm; 4 layers at 1.04mm; 5 layers at 1.52mm
- Sold as
- Single gasket (two needed per engine)
Contents
1 x Cometic MLX cylinder head gasket (93.5mm bore)

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