6 pcs Forged Pistons with pins and rings For BMW N55B30. BMW – 3 Series 2010 -2013 (E90/E91/E92/E93) 335i. Piston x 6pieces. Piston pin x 6 pieces. Piston ring x 6 cylinders. Piston Material 2, Moly Coated on skirts, for reducing the friction of Piston Skirt with Cylinder Wall.
