Product detailed specification

Bore size

81.50mm

Stroke

86.40mm

JE Pistons compression ratio (CR)

9.0:1

OEM compression ratio (CR)

9.3:1

Dome volume (CC)

-3.90cm3

Compression height (CH)

30.70mm

Pin diameter

21mm

Features

Accepts Turbo and Nitrous; Round skirt

Fits for

Audi S4, RS4, A6 - 2.7 30V

JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past.
For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston!