JE Ultra Series forged pistons for the Toyota 3S-GTE utilize JE's Aligned Grain Flow forging technology to maximize tensile strength, and they include thermal barrier crown coating, skirt coating, enhanced pin oiling, lateral gas ports, and premium high-strength wrist pins. These features reduce piston crown temperatures, limit friction and wear, and help maintain ring seal under high RPM and boosted conditions. Ultra Series pistons are made in the USA.
JE Pistons Toyota 3SGTE Ultra Series - Set of 4 Pistons