Audi S4 RS4 3.0 V6 Biturbo Stroker FCP forged piston kit 82.5mm CR 8.5
Part number FCPPA825085RS4STR.
FCP Engineering forged piston kit (6 pcs.) 82.50mm CR 8.5:1.
For Audi S4, RS4 - 3.0 V6 Biturbo Stroker.
Must be used with 3.0 V6 crankshaft and OEM or FCP 154mm connecting rods.