ARIAS 92.5MM 3.642 Bore, Low Compression(dish top) 4/set, turbo/nitrous.

Application:

-Subaru EJ20 2.0L DOHC - 01-03 WRX

-8.7:1 Comp. Ratio

 

Sport Compact piston stocking kits include:

-Forged pistons with pin fit.

-Wrist pins: High carbon, case-hardened.

-Ring set: chrome or moly faced top, cast 2nd, 3-piece oil.

-Locks: carbon steel wire or spiral.

 

Piston info:

-Hi-tensile forged, not cast, billet material (4032 or 2618).

-4032: hi silicone aluminum; 2618: non silicon aluminum.

-CNC machined working surfaces.

-Optimized crowns for efficient combustion.

-Diamond-turned ellipsoidal skirt profile.

-All motor/Nitrous pistons feature lightweight, high strength construction.

-Turbo/Nitrous pistons feature durable, heavy-duty design.