Sam, don't think do.It had pipes about to the back of engine.2-1 on each side.Little 4-6 " collector. Elraldo did make his own aluminum rods and later Ti ones! Going to shoot him a pic and see if it rings a bell.Finally around 2:00 last night , grabbed a flashlight and pulled throttle WFO, could see ported intakes.Pulled valve cap , stock retainers.Gotta pull the 69 carbs and really look.Bottom end 75 model, head on back fin has Honda logo, then 300 # then #4. Early one's like that? Replaced bent kickstarter, splines show a little twisting also! Replacing grips, replaced brake lever, was bent.Overall very quality build.K. Bill