Athena MLS Head Gasket for Subaru Impreza / Forester / EJ20 0.9mm 94mm 338460R

ATHENA Multi-Layer Steel (MLS) Gasket

Material
ATHENA MLS gaskets feature a combination of 3 to 5 layers made from different types of raw materials.

The combination of outer and inner layers is designed to offer superior standard compression performance, and the type of steel used can vary depending on engine requirements.
Athena MLS gaskets provide even torque load across the entire sealing surface to compensate for any cylinder deformation.

The Athena MLS gasket is the ideal solution for both aluminum cylinder heads with cast iron blocks and aluminum cylinder heads with aluminum blocks.

Manufacturing Process
Newly designed Athena MLS cylinder head gaskets are crafted from high-quality, high-strength 301 stainless steel.
Each layer is individually formed using state-of-the-art laser cutting and embossed with an optimized forming process.
Two layers of the cylinder head gasket undergo a stress relief process to significantly reduce stress induced by embossing.
Following the stress relief process, a proprietary two-component polymer coating is applied, ensuring uniform coverage of the outer layers, with no breaks in the coating. This process ensures micro-sealing of engine oil and coolant fluids.

Athena MLS gaskets are tested and analyzed on engine test benches and in endurance tests.

Gas Stopper Technology

Gas Stopper technology is a key factor in the design of competition MLS cylinder head gaskets. The stainless steel stopper layer incorporates an innovative active folding system that provides a high-pressure seal around the cylinder bore when tightening the cylinder head. The gas stopper is positioned around the combustion chamber, allowing for a firmer fit between the cylinder head and the engine block, preventing gas leaks.

This also prevents component deformation due to faster temperature equalization. Benefits

Superior sealing properties under high-pressure conditions

Increased elasticity and constant load resistance

Optimized load balancing

Improved engine performance

Increased durability

Proprietary Coating Technology

Our two-component polymer coating is applied after the stress relief process and ensures uniform coverage of the outer layers, with no breaks in the coating. This process ensures micro-sealing of coolant/engine oil fluids and meets the demands of various harsh environments.

The first layer is a high-temperature compound that conforms to surface irregularities of the engine block and cylinder head. (Typical MLS cylinder head gaskets require a 30 Ra surface finish, while Athena's seal surface finishes up to 60 Ra).

The second layer is easily removed and does not stick to contact surfaces when disassembling the engine.
Compatible with:

SUBARU EJ20 (Turbo) 1994 cc 155 kW; SUBARU EJ201 1994 cc 85 kW; SUBARU EJ202 1994 cc 90 kW; SUBARU EJ204 1994 cc 103 kW; SUBARU EJ205 1994 cc 125 kW; SUBARU EJ205P 1994 cc 206 kW; SUBARU EJ207 1994 cc 195 kW; SUBARU FORESTER (SF_) 2.0 AWD (SF5) 1994 cc 90 kW; SUBARU FORESTER (SF_) 2.0 AWD (SF5) 1994 cc 92 kW; SUBARU FORESTER (SF_) 2.0 S Turbo AWD (SF5) 1994 cc 125 kW; SUBARU FORESTER (SF_) 2.0 S Turbo AWD (SF5) 1994cc 130kwSUBARU FORESTER (SG_)2.0 AWD (SG5) 1994cc 92kwSUBARU FORESTER (SG_)2.0 S Turbo AWD (SG5) 1994cc 130kwSUBARU FORESTER (SG_)2.0 X AWD (SG5) 1994cc 116kwSUBARU IMPREZA Saloon (GC)2.0 AWD (GC8) 1994cc 206kwSUBARU IMPREZA Saloon (GC)2.0 Turbo GT AWD (GC8) 1994cc 160kwSUBARU IMPREZA Saloon (GD)2.0 AWD (GDA) 1994cc 184kwSUBARU IMPREZA Saloon (GD)2.0 WRX STi AWD (GDB) 1994 cc 195 kW SUBARU IMPREZA Sedan (GD) 2.0 WRX Turbo AWD (GDA) 1994 cc 165 kW SUBARU IMPREZA Sedan (GD) 2.0 WRX Turbo AWD (GDA) 1994 cc 160 kW SUBARU IMPREZA Estate (GF) 2.0 Turbo GT AWD (GF8) 1994 cc 160 kW SUBARU IMPREZA Estate (GG) 2.0 AWD (GG9) 1994 cc 92 kW SUBARU IMPREZA Estate (GG) 2.0 Turbo AWD (GGA) 1994 cc 160 kW SUBARU IMPREZA Estate (GG) 2.0 WRX Turbo AWD (GGA) 1994 cc 165 kW