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Old 10-12-2010 | 08:43 AM
  #5767  
Solara
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Originally Posted by Smartypants
I have recently got a SP Prostock 2.1 speedo,can anyone tell me what software is on this unit as standard? does it need an upgrade to 528?
Some has 205g on it, some has 422 on it depends on when are those 2.1 ProStock were out from the factory...however, you DO want to change to 528STOCK for stock motor or 528MOD for mod motor use.

You will need the LCD programmer box to get the software upload to your ESC...then you can download software for free from SPEED PASSION website.
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