Give your Miata that quite ride with our DEI floor damping kit. We give you our Boom Mat Damping material ready to install with deatiled instruction on were to put it for the most effective resulst without addding unwanted weight. We incldue Boom Mat Damping material, detailed instructions and an installation roller. Floor Insulation Kit; 4 - 6 x 6 in. Damping Material; 4 - 12 x 12 in. Damping Material; 2 in. x 20 ft Roll of Tape Damping Material; Installation Roller; Insulation; Mazda Miata 1990-2005. NA/NB models