JE PISTONS SPORT COMPACT Pistons [Bore Size 83.00 | Oversize (mm) 1.00 | Stroke (mm) 94.6 | Rod Length 148.2mm | C/D (mm) 33.2 | Head CC's 36.1 | C/R with .048 10.5:1 | Dish/Dome CC/s -12.3 | Gram Weight 317] (BMW 2015-2025 B58B30)

JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy.

Dome/Dish requires no deburring or preparation and feature smooth flowing radii for excellent flame travel.

Pin fitting, wire locks, and rings included.

FSR (Forged Side Relief
Accepts Turbo and Nitrous