No, it is the same. Three inches wider per side.
Although a lot cheaper, you have to mould in the panels as opposed to replacing them. It is up to you. I believe that Archie's basic kit only widens the rear end, not the front. You need the full kit to widen the front end also. Even so, it is a hell of a deal.
[This message has been edited by IMSA GT (edited 01-03-2016).]