RLV 3-Stage Pipe - WITH THICK FLANGE - For Open & Modified GX200, Predator, and 6.5 OHV RLV #EXF5026 This pipe is especially designed for high HP, proven on the track and dyno to provide maximum HP! Approximately 21" overall with 2nd and 3rd stages each 3-1/2" long .932 ID X 19-1/4" Long Short Side Thick steel "D" flange blended to fit port and notched to fit Hondas and Chinese OHVs. Will fit Predators, but may require a slight enlargement of the bolt holes. Includes two M8x30mm bolts WARNING: Pipe must be supported with a bracket/brace to either the frame or the engine; otherwise, pipe may fracture or break. Brace not included - RLV 4161 Brace recommended. Picture is for reference only: engine and other parts are not included.