Wow, really pleased with my homemade stage 1 and Dobeck GEN 3. Bike not only runs great, but very strong now, real seat of the pants improvement in power. Took a few months and lot of trial and error, but got it all dialed in now.Tunable lollipop baffle in the mufflers and correct surgery on airbox brought it home. Learned something about air flow dynamics into the intake tract- with the stock air filter, you want to make sure air enters the airbox in a way that does not disturb air flow into the filter. And did it all for $300 including the tuner Thanks to everyone who offered advice, here and in other places.