I had my PCIII updated with the new 6200 rpm redline upgrade and it works great! so now you won't have to do the stage 1 down load for the rev limiter. just my $.02

 

Ok, I have a PCIII usb on my 05 Ultra. Stock ECM.

What does this rev limiter do exactly???

THANKS.

 

I also have the PCIII rev x-tendeer. Very easy to use. It raises the rev limit of your engine to 6200.

 

So basically, that add on is useless if you already have the Stage 1 download.......good to know (just got my PCIII usb installed this past weekend).

 

Correct-its not needed if HD already raised your rev limit via the download.

 

The Stage I download is a joke and a waste of money! All it does is raises your Rev limiter from 4500RPM to around 6500RPM. Unless you're planning to ride over 100MPH all the time, you'll probably never hit 4500RPM. Save that $150 for either a PCIII or SERT.