Any thing 2:1 convers your banshee in to a 2 cylinder blaster.
I am developing a new product. It is a torque or bottom end multiplyer. Not real set on the name yet. It is desigend for 2:1 guys. If your running a 2:1 carb but still running dual exhaust the kit will be a little more expensive because you will still need 2 of them.
Esentially it is a rubber stopper with a 1/8, 1/4, 3/8, or 1/2 hole. The more bottom end you want / need the smaller the hole. The delux kit will have all 4 sizes for $99 bucks, or they can be purchased individually for $30. You just stick it in the end of the silencer. It makes going from differnt power levels simple and quick.
People running dual carbs and dual exhaust should not use this product.