Losi have introduced the PROformace upgrade kit for the Tenacity SCT, and DB vehicles. The upgrade kit includes many items to update the Tenacity to a
race-level vehicle. This includes an aluminium chassis, which provides more strength, and the items needed to convert to the upgraded chassis. It also
includes aluminium front and rear shock towers which stiffen up the suspension for better handling. The aluminium shock bodies and shock caps it includes
make for a smoother suspension. Finally, it includes adjustable turnbuckles and sway bars which add to the race-level experience. The set was designed for
SCT, T and DB kits and dies not work with the Tenacity monster truck.