Wiseco Professional Series forged piston set for the Mitsubishi 4B11 engine is a shelf-stock kit with an 86.00 mm bore and built as a set of four. Engineered and forged in the USA from 2618 aluminum, these pistons include precision ring grooves, an anti-detonation groove and ArmorGlide skirt coating for seizure resistance and reduced friction. They are intended for heavy to severe duty race and high-performance builds.
Wiseco 2008+ Mitsubishi EVO X 4B11 -9cc 86mm Bore Piston Shelf Stock Kit