From top engine tuner Michael Mielke comes this black side-mount pipe for the HPI Baja 5b. Gives significant performance gains throughout the RPM range. 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. Mielke part 5100
