The Synchrotech Brass Master Kit (GSR ITR B16) is the perfect choice for Honda fitment. It comes with a fitting for Y80 S80 S4C S21 Y21 (B16A/B16B/B18C) and 1-5 brass synchros, 1-5 synchro springs, a brass reverse synchro and spring, 1-5 slider sleeves, 5 shaft bearings, 2 axle seals, an input seal, a shift rod seal, and a new dust boot. Get smooth shifting with this reliable kit!