Cometic 03+ Subaru EJ255/EJ257 101mm .045 inch MLS Head Gasket

If you're rebuilding the top end of your Subaru EJ255 or EJ257 engine, a solid head gasket is crucial for sealing combustion pressure and coolant. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of high-output engines, offering a reliable seal without needing extra sealants.

This gasket is constructed with multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. The center layer is stainless steel, and its thickness is varied to meet different requirements; in this case, it's set at 0.045 inches compressed thickness with a 101mm bore, making it suitable for a range of Subaru models like the Impreza, Forester, and Legacy from the mid-2000s to early 2010s.

Because it's an MLS design, it works well with both aluminum and cast iron blocks, and it can handle the shearing forces that can occur between different metals. This makes it a strong option for many Subaru builds.