New from DDM! Developed through months of extensive in-house testing and prototyping, and custom-designed for maximum RC performance, these new "Dominator" pipes for your HPI Baja 5b gas buggy will give you the power you crave. Gives snappy low-end response, yet still offers unmatched top-end performance! The DDM Dominator pipe features top-quality steel alloy construction, single-piece design to minimize leakage, ultra-sturdy mounting system, and jaw-dropping high polish show chrome finish. Includes FREE custom X-port finned exhaust spacer for improved exhaust header cooling and to help keep the pipe clear of any frame parts! The pipe passes safely through the rear frame "box" - this design is to allow the pipe to be sufficiently wide to allow for MAXIMUM performance, while still being VERY well protected - pipe is unlikely to be exposed in a rollover. Includes genuine Zenoah exhaust gaskets and mounting hardware. Weight is approx 1.65 pounds. Pipe is covered by lifetime warranty against manufacturing defects from DDM. Fits Zenoah and Chung Yang engines.