Aev procal
JK Junkie
Joined: Oct 2007
Posts: 2,565
Likes: 0
From: HAWAII
just follow the quick reference guide that comes with the Procal 
JK Enthusiast
Joined: Jan 2013
Posts: 257
Likes: 0
From: Carmel
JK Super Freak
Joined: Apr 2007
Posts: 1,258
Likes: 1
From: Prosper, TX
Your dealer should be able to reef lash your puter for the proper size tire for a lot less than 150. I think I paid $40 to the dealer to flash my 08. Really didn't notice any change except the speedo being correct so feel it was a waste of money.
JK Newbie
Joined: Jun 2012
Posts: 96
Likes: 0
From: Philadelphia,Pa
changing rims is not the issue.it is when you change rubber size.......you have any size rim you want with a 31,33,35 and so on size tire.
the procal is worth the money for the other things you can do with it.
i'm working on getting one for my Rubi....
the procal is worth the money for the other things you can do with it.
i'm working on getting one for my Rubi....
JK Super Freak
Joined: Feb 2012
Posts: 1,087
Likes: 2
From: Parker, Colorado
Somewhere in the owners manual it states that the warranty can be voided if a modification is made to throw off the accuracy of the odometer so it's not a complete waste of money.
JK Freak
Joined: Jun 2011
Posts: 777
Likes: 0
From: Bondurant, Iowa
It does a lot more than just adjust tire sizes...it's far from a waste of money!!
JK Super Freak
Joined: Nov 2011
Posts: 1,031
Likes: 0
From: Riverside, CA
Out of the $10K+ I've spent on mods, the $150 for the Procal was the best value for what it does. If you had told me it was re-geared, I would've believed it.
I talked to 2 dealers in my area: Both said they will not 're-flash' the computer for tire size. If if they would, as mentioned, it does other things as well.
I talked to 2 dealers in my area: Both said they will not 're-flash' the computer for tire size. If if they would, as mentioned, it does other things as well.
JK Freak
Joined: Jan 2013
Posts: 643
Likes: 0
From: Westfield
Out of the $10K+ I've spent on mods, the $150 for the Procal was the best value for what it does. If you had told me it was re-geared, I would've believed it.
I talked to 2 dealers in my area: Both said they will not 're-flash' the computer for tire size. If if they would, as mentioned, it does other things as well.
I talked to 2 dealers in my area: Both said they will not 're-flash' the computer for tire size. If if they would, as mentioned, it does other things as well.
JK Jedi
Joined: Sep 2012
Posts: 4,364
Likes: 107
From: missoula,mt
I had two dealers including my selling dealer tell me they could not adjust the speedo for increased tires. The selling dealer recommended the AEV procal. This was on my 2013 jku. The selling dealer did not sell proccals altho they recommended them so I figure if they could have made a buck by reflashing they would have. I like that procal can configure my fogs to drl's. I also like having my speedo and odo spot on.