I own GS450h, yr2006 in Japan. I found out discrepancy between U.S. version and Japanese one in terms of specifications, such as obviously speed limits, 0-60 time, meter unit(power, speed meter), and some index letters. In Japanese aftermarket, speed-limit-cut　device for GS350/430 is　now available, and supper-charger for GS430 will be delivered in the middle of September, however, so far, no expectation for GS450h because of complicated management system ‘Hybrid’. Therefore, I wonder whether or not U.S. or U.K. parts can be ordered in Japan and try to install them into my GS450h. From my dealer, parts list for overseas are protected only just to see, but without any guarantee, may be ordered if parts no. is found out. I will just try. I would really appreciate it if anyone would inform the following parts no. or any advice and comment.

(1) I want to change Japanese index on button into English one:
I would like to know panel or bottoms parts no. for both side of navigation system
left side: CLIMATE, AUDIO,INFO,DISP
right side: MAP,DEST,MENU

This is a tinny customization!!

(2) I want to cancel speed limit and change meter panel.
I don’t have any information on Hybrid system controller, only one controller should be replaced or not? As to meter unit, U.S. version with speed meter of mile/h or such as U.K. version with ‘km/h’ is expected. Anyway, I feel this modification is hard to be done.