Max your chassis and max your tire combination. For straight line performance, autocross or canyon carving, our chassi stiffening kit goes to the Max! Get all the go and whoa to move your car, not twist it. When you want Max Power and Max Traction, get Max Stiff. Add our chassi bracing kits and go kick some Asphalt. Chassis Stiffening kit includes: A Pair of CNC Frame Connectors (complete set of 2) Front and rear torque boxes (complete set of 4) A pair of front inner fender braces (complete set of 2) A front lower core support stiffener Rear spring relocation kit (complete kit for both sides) Mini tub kit (complete kit to add up to 4" per side tire clearance) Welding required.