Seriously, this thing is GINORMOUS!
A longer intake manifold can add more low end power (torque) and this one is long.
Just what you need if you are motorizing a bike with a tight frame. This manifold allows you to offset your carburetor WAY OUT to the right side so that it can clear the seatpost.
This product is used for larger carburetors or tight framed 2-stroke 66/80cc motorized bicycles.