Arias SpeedCircuit 90mm (2.2+L) pistons for Evo X 4B11T

These pistons are made by ARIAS pistons to SpeedCircuit specifications for 90mm overbore pistons. These pistons will work in 2.2 - 2.5L engines. Hi-tensile forged, not cast, billet material (2618). CNC machined working surfaces. Optimized crowns for efficient combustion. Diamond-turned ellipsoidal skirt profile. Turbo pistons feature durable, heavy-duty design. 90mm overbore pistons for 2.2+L engines. Upgraded heavy duty wrist pins to handle well over 40psi of boost. Extra thick ring lands. Heavy duty rings. 9.0:1 compression. Pistons are also available in stock bore Package includes pistons, rings, wrist pins and upgraded wire locks (rather than spiral locks). May take up to 6 weeks to deliver. Contact us before ordering.