Impul versions of the Nissan RPS13 180SX and the S13, S14 and S15 Silvias. They made the 314S zenki S14 and the kouki Super Silvia S14. Wheels on the 180SX are one piece Impul RS. The S14s are wearing the 3 piece Hoshino Racing RS. The S13 Silvia has Impul R5 which were the predecessor to the RS. On the S15 we have the Impul NS01-R