I am planning on putting Vance and Hines Big Radius pipes along w/Arlen Ness Big Sucker using a Power Comander on my 2007 Wide Glide. I noticed that the internet dealers are offering PC III usb. When I went on the actual PC web site they reccomend PC III usb EX. Does anyone know what the differrence is. Is the EX version something new that the indie. dealers aren't selling yet. Would like to know before I purchase the wrong one!

 

The "street" version is the eco-friendly, greenie version that comes with a My Little Pony and 20 Al Gore certified carbon credits. [8D] Get the real one.

 

What ktm said. The ex is designed for California use.
Has far less tuning capeabilities.