Ford Mustang Forum banner

rs400x

  1. 2005-2010 V6 Mustang Tech
    November of 07, I bought a 2006 Mustang Automatic V6 from a dealer who purchased it at auction from the original owner. It has "RS400x Limited Edition" decals on the exterior and interior. No one at the dealership was able to tell me if this implied modifications or not. I googled "RS400...
Top