If you're diving into the world of FA20 builds, then you know how crucial a solid head gasket is. That's where GrimmSpeed comes in. They've been around the block when it comes to quality gaskets, and their FA20 Head Gasket Sets are a game changer for anyone looking to boost their engine's performance.

These gaskets are built tough, featuring a multi-layer steel (MLS) design that’s made to handle everything from a simple refresh to a full-on track-ready monster. The top and bottom layers come with a Nitrile Rubberized Coating, which is a fancy way of saying they can seal up even if your mating surfaces aren’t perfectly smooth. We’re talking about a surface finish of up to 50 microinches here. That means less chance of leaks, which is a big win for any engine build.

One of the standout features is the folded stopper layer. This little addition does wonders for sealing the combustion chamber, especially when you’re cranking up the cylinder pressures on a built engine. No one wants to deal with head gasket failures after putting in all that work, right?

After chatting with some engine builders and tuners, GrimmSpeed realized that having various thickness options was key for different setups. So, they’ve got you covered with thicknesses of .78mm, 1.05mm, and 1.45mm. This means you can fine-tune your build just the way you want it. Plus, the slightly oversized bore diameters allow for up to a 0.5mm overbore, which is pretty sweet if you’re looking to push the limits.

These gaskets fit both the FA20A (found in WRXs) and FA20B (in BRZs, FRSs, and 86s), so whether you’re going for a naturally aspirated build or something with a turbocharger, they’re versatile enough to handle it all. You can trust that these gaskets carry the same quality that GrimmSpeed is known for, so you know you’re getting something reliable.

• Sold as a Set/Pair - Left and Right side specific
• Die Cut Multi-Layer Stainless Steel (MLS) Construction - Ensures consistency with a tight 0.001'' manufacturing tolerance
• Folded Stopper Layer for enhanced combustion chamber sealing
• .25 micron Nitrile Rubber Layer Coating - Keeps leaks at bay on imperfect surfaces
• Compatible with both FA20A (WRX) and FA20B (BRZ, FRS, 86)
• Accommodates up to 86.5mm bore
• Thickness options: 0.78mm, 1.05mm, 1.45mm (after crushing)

• Subaru BRZ | Scion FRS | Toyota 86 (2013-2020)

So, if you're ready to take your FA20 build to the next level, these GrimmSpeed head gaskets are just what you need. They're built to last and designed to perform, so you can focus on what really matters—getting out on the road or track and enjoying the ride.