Yoshimura RS-3 Street Series Slip-On Exhaust 1250255 The easiest and least expensive way to experience Yoshimura performance is with our Slip-On/Bolt-On lines. Slip-On style with 20-gauge 304L polished stainless steel tapered mid-pipe easilyattaches to the O.E.M. header pipe Usually, no jetting or re-programming is required and installation is a snap