JE Pistons Ultra Series Subaru FA20DIT 86mm Bore 10.0:1 CR Set of 4 Pistons

If you're building a high-performance Subaru FA20DIT engine, these JE Pistons Ultra Series pistons are a solid choice. They're designed specifically for the demands of boosted applications, helping you get the most out of your engine build. JE Pistons has a reputation for making well-built internal engine components, and this set is no exception.

What sets these Ultra Series pistons apart is their proprietary Aligned Grain Flow forging technology. This process maximizes the tensile strength of the aluminum, allowing them to withstand the extreme cylinder pressures that come with high boost levels. You'll also find a thermal barrier crown coating, which is a ceramic-based material that reflects heat back into the combustion chamber. This helps keep piston crown temperatures down and can improve how efficiently exhaust gases are scavenged. For added durability and reduced friction, the piston skirts are coated, which also helps quiet down operation, especially during cold starts. These pistons also feature lateral gas ports to help maintain a strong seal on the top compression ring, even at high RPMs and under significant boost.

This set includes four pistons, each with an 86mm bore and a 10.0:1 compression ratio, making them suitable for many performance engine builds. They also come with high-strength Trend Performance wrist pins, designed to handle the stresses of power-adder engines. Remember, these pistons are made 100% in the USA. Please note that this part is not CARB approved and cannot be shipped to California.