It was added as part of a patch released alongside the Terminal Velocity, Movie Legends and Need for Speed Heroes packs. It is available for all vehicles and can be unlocked without the purchase of any downloadable content pack. Equipping the Ram Chassis modification increases the toughness of a vehicle's front without the expense of reducing acceleration and top speed like the Reinforced Chassis. The professional Ram Chassis modification offers a greater increase in the toughness of a vehicle's front and reduces speed lost in traffic collisions.