how does the 2 into 1 exhaust work? i heard most 2 into 1 carb systems arent very effective. is this for fitment reasons or are there benefits? just stock cylinders?
The 2 into 1 exhaust, will create a more torque biased engine. Kim Kuhnle, raced XC on a banshee with 2 into 1 intake and exhaust. He actually won a lot of races but barry hawk typically won every year because the 250r is a much better handling machine.
I don't know too much about how the physics apply to 2 into 1 set-up. maybe jerry can explain.