If you could see it in person, hear it in person, ride the bike in person, they would sell themselves. S&S Power Tune Header paired with V&H Hi-outputs.
I don't have a lot of experience with different head pipes, but I have been more than happy with my dresser duals. Wether with the Hi-Outputs or now with the MGS mufflers. Whenever there is a next time i think i want to go with the ceramic coated duals.
I have V&H dresser duals with their monster ovals. Love 'em. I'm using the SE ventilator along with the power vision tuner. Great set up and no issues.
I have Cobra Power Port Duals with Klock Werks super saver slip ons. A little loud for this old man so I installed a set of baffles from Chrome works and have a perfect sound to this 70 year old rider.