All of LC Engineering's forged pistons now come standard with gas nitride ring sets. These rings were developed originally for boosted applications (turbochargers and superchargers). However, when applied to our 22R/RE/RET engines we found this new ring allows us to run a smaller ring to reduce any extra horsepower loss due to excess friction and still allow proper ring sealing.
NOTE: These are not a gapless ring, and this is for (1) cylinder only.
Contact our Tech Support Line for further information at 928-855-6341.