New billet steel FCP Engineering crankshaft for Audi S2 2.2T 20V -> 2.5 20V stroker (3B, RR, AAN, ABY, ADU).
Made from 40CrNiMoA billet steel.
Stroke 92.8mm.
For use in the series 20V 5-cylinder block, or in the diesel block to achieve a displacement of 2.5L