Posted September 12, 2013 - 01:09 PM
Read the manual. You can add or subtract a percentage.
Posted September 12, 2013 - 02:11 PM
I don't think it's adjustable if it's street legal from the factory. You would have to get a speedo healer or something.
Posted September 12, 2013 - 02:36 PM
Not sure but mine is adjustable. Like it was said above its by percent. So you would need to find the deference in percent. It's shows how in the manual.