Steering wheel hub boss kit, is an adaption to fit a Racing Steering Wheel to a car, they come in different size, pull old exsisting wheel off, and lace boss kit on, then the racing wheel will fit on. Product feature: Universal steering wheel hub boss kit >Comes complete with horn wire, all necessary fitting kit >Direct fitting to most car >Easy installation >Fitting diagram printed on the box >Standard 6 bolt fitting compatible to momo, nardi, sparco and many other brands of steering wheel Fitment: Product NO.:Car make M-1/OM-33 :Mitsubishi T-2/OT-47 :Toyota OH-90/OH-1/OH-124 :Honda E-30/E-36 :BMW N-6 :Nissan R-2 :Mazda, Ford I-1 :Isuzu SU-1/SU-5: Suzuki VW-4 :VW, Poussin VW-4A: VW, Jetta, Chery Antelope, Polo Bora, Golf