DDM LARGE X-PORT BILLET SPACERDouble length X-port for even more low end performance. Installs between cylinder and muffler. Lowers engine temperature and increases low-end torque. Fits all X-can and X-can V.2 billet mufflers. Includes two mounting bolts and two exhaust gaskets. Fits Zenoah G23LH / G2D / GZ25N14 / GZ25N23 / G230RC / G260RC engines. Also fits Chung Yang CY23RC / CY26RC / CY27RC / CY29RC / GP290 engines.