Designed uncompromisingly for performance, the TGN race pipe is the largest, longest pipe currently available for the HPI Baja 5b. Multi-piece construction for flexibility and impact resistance, raw "works" style finish, and integrated silencer. Gives HUGE low-end gains and significantly improved top end. Side mount design for improved vehicle handling compared to rear mount pipes. Fits Zenoah and Chung Yang engines. Fits Zenoah and Chung Yang engines. Fits the stock 23cc "Fuelie" engine on the HPI Baja 5b, and the stock 26cc engine on the Baja 5b SS. Also fits all aftermarket and modified engines.