BMW E9X M3 Race-Spec Oil Cooler AP1 For more extreme testing

For more extreme testing

This core design offers weight savings over traditional bar/plate cores without sacrificing durability

BMW: 17 21 9 494 828

With hundreds of CSF manifolds sold

Toyota: SU003-03939

BMW E9X M3 Race-Spec Oil Cooler AP1 For more extreme testingThe engineers over at CSF know cooling. So when it comes to keeping your engine oil temps down as you push your E9X M3 hard on the street or track, a CSF Oil Cooler is the obvious choice. Engine oil temperatures are a big concern to anyone who tracks their vehicle or pushes it hard on hot days. High oil temperatures in modern cars will send you into "Limp Mode" in order to protect the engine but slows you down to a crawl and is overall an unpleasant