I have toomey and dmc alien. Id stick with them two.. Actually a toomey isnt that bad on a stock motor.... It has a strong top and midrange. If you got the toomey and a set of vforce reeds i think you would be set. Now Dmc alien is great for low to midrange for example i love it and is a great pipe for the track. To get the most power for you we need to know what kind of riding you do. Example woods,racing,harescrambles,driving around the farm, trails etc etc.