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    • RK Autowerks ported BMW S63/S63TU cylinder heads with flow numbers - $5999

      RK Autowerks posted some beautiful shots of their ported BMW S63 and S63TU (presumably you can get your N63 heads ported as well) cylinder heads. BimmerBoost asked if they had flow numbers to prove there is a gain and something shocking happened.


      They shared the numbers. It is rare to say the least to get ported head flow numbers from tuners at least in the German tuning scene.

      There is quite a bit to pick up and for those looking for top end power, look into these heads:


      There is not a single other tuner or head porter that provides S63 before/after flow figures so RK Autowerks certainly has our respect.

      The head work starts at $5999 and there are various options such as inconel parts or titanium hardware.








      This article was originally published in forum thread: RK Autowerks ported BMW S63/S63TU cylinder heads with flow numbers - $5999 started by Sticky View original post
      Comments 1 Comment
      1. maxnix's Avatar
        maxnix -
        $6K is probably not that bad in Germany. Is it CNC, hand or both?