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    • JB4 + MHD BEF BMW F30 340i B58 with meth makes 458 whp and runs 11.48@119.16 1/4 mile

      A bolt on B58 here in a BMW F30 340i putting up some nice numbers. The majority of modding will be right in this bolt on range and it is good know what kind of performance numbers BMW F30 340i owners can expect with the following recipe.


      Tune: JB4 + MHD BEF
      Exhaust: AWE
      Intake: BMS
      Meth kit: BMS
      Charge pipe: FTP
      TCU: XHP Stage 3

      That is a nice bolt on list there. It results in the following output:

      Pull 1: 441 WHP / 526 WTQ
      Pull 2: 447 WHP / 493 WTQ
      Pull 3: 458 WHP / 502 WTQ

      The owner unfortunately only posted the peak figures and not the graphs.

      He did time it on a drag and the acceleration is impressive:


      To go beyond this will require changing the turbocharger.


      This article was originally published in forum thread: JB4 + MHD BEF BMW F30 340i B58 with meth makes 458 whp and runs 11.48@119.16 1/4 mile started by Sticky View original post