Evergreen PA44012.STD Acura Honda 2.2L F22A1F22B1 SOHC Engine Piston Set (Standard Size) Fits: Acura Honda 2.2L F22A1F22B1 SOHC (see description below) Ultra Performance Custom Made Premium Grade Aluminum Silicon Pistons Gas Nitrited Steel Rings, 50% Longer Life, Reduce Tension with Better Fuel Economy, Reduce Cylinder Wear Much improved design with more efficient oil passage holes in oil ring groove. Minimizes fractures & cracks. No more gummed up oil. Reduces engine failure Meets or exceeds OEM specifications. Easily lasts 150,000+ mile