: >Why a 4 tube exhaust? ++++++++++++++++++++++++++++++++++++++++++++ It lets the engine breathe a bit better and produce a bit more power / higher RPM. If you could tune the pipes, even better. Tune, as in match the length of the pipe to the length of the gas power pulse. It helps extract more burnt gas from the cylinder and pull in more air / fuel mixture. (more power)
I had a two into one on each side on my 0-200. Easiest setup possible but very poor for performance. Larry Flesner
