Cosworth Billet Crankshafts for Subaru Impreza WRX STI 2004-2008

Increased engine performance often means increased engine speed load. Original factory crankshafts not be able to withstand added stress; resulting in catastrophic failure. Cosworth billet crankshafts machined from ultra strong EN40B steel; engineered to endure harshest condits have been tested to withstand over 1;000HP.
Key Features
Superior lubrication
Profiled counterweights
High strength
Light weight