Wiseco Professional Series forged pistons for the BMW M20B25 are a set of six race-oriented pistons machined to specific dimensions for an 84.50 mm bore and include a +6.20cc dome. Built for heavy to severe duty applications, these forged pistons feature precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating for seizure resistance and reduced friction, and provisions for forced pin oiling.
Wiseco BMW M20B25 +6.20CC 1.366in x 3.3628in Dome Pistons (Set of 6)