Product detailed specification

Bore size

84.50mm

Stroke

75.00mm

Wiseco compression ratio (CR)

8.8:1

OEM compression ratio (CR)

8.8:1

Dome volume (CC)

-6.8cm3

Compression height (CH)

34.70mm

Pin diameter

22mm

Features

Accepts Turbo and Nitrous, Round piston skirt

Fits for

BMW - 2.5 12V (M20B25)

Armor Plated wiseco pistons have almost a bronze colored tint to the top of the piston and the wrist pin bore. Wiseco's Armor Plating is an abrasion resistant plating that raises the hardness of the aluminum, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation. Wiseco's most popular pistons now include Armor Plating.