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  • TREMEC T56 Magnum-F vs Regular magnum - installation in existing GR700 supra
  • Post author
    Joel Grannas

TREMEC T56 Magnum-F vs Regular magnum - installation in existing GR700 supra

Tremec Magnum-F vs T56 Magnum

My good friend and customer Ryan Scott recently upgraded his GR700 kit to the new Magnum-F transmission. I asked him to highlight the difference in shift experience/feel between the old kits with the Sikky shifter and the new Magnum-F kit I offer. I think the results speak for themselves!

I also asked him to demo the new bluetooth transmission harness product I offer which allows control of the reverse lockout based on speed, and also converts the transmission speedo sensor signal to work with the factory dash/speedometer. All in one nice clean harness which is as close to plug-and-play as possible. All of it controllable and customizable through a smartphone app. This replaces the old way of doing it with the pigtail kit and the SGI-5E or SGI-100BT box.

Here is the video below from Pure Function on youtube.


If you have a current Grannas Racing kit and want to upgrade, there are a few things you will need to change in addition to the transmission:

  1. The Magnum-F Transmission
  2. Driveshaft (magnum-F requires a longer driveshaft)
  3. Shifter (my new magnum-F shifter)
  4. If you are an original automatic MKIV, and used my tunnel cover product, you will need my new magnum-F version tunnel cover. The magnum-F requires a little more trimming and a slightly larger cover.

Contact us if you are interested in a kit, or interested in upgrading! I offer special pricing to return customers!  


  • Post author
    Joel Grannas