The ZRP crankshaft for BMW M3 S14B25 is manufactured from aerospace grade 4340 solid billet steel and no compromises have been made to the quality of the material, in order to ensure the best possible product. This crankshaft designed carefully from our vast experience, to provide the best possible engine performance and the production process consist of very strict inspections to ensure that they have the best quality and tight tolerances for perfect fitment. .
The BMW crankshaft is fully balanced to 1gr.cm +/- 0.1 using state of the art Sunnen machines, balance results report included. Check the individual features for your application below.
* This crankshaft can also be used as a stroker on M3 S14B23 engine.
Product Features and Design
Technical Features of ZRP Crankshafts