If you want performance, spend the money on the Thunder Max tuner. If you want sound and to save money, go cheaper. You get what you pay for. If you are going to do a "build" then buy the right tuner once. If you are going to run Drago exhaust, that means you will also do a new breather and probably want to add cams. TMax covers it all. And Frank Drago has all of the maps needed for any setup.
Quattro / 16 RGS / Dragula2 2:1 / Drago 565 / ThunderMax Tuner / Fuel Moto Breather / Klock Werks Flare / Custom Dynamics LEDs
Orange Crush / 13 RGC / Dragula 2:1 / TMan 555TQ / ThunderMax Tuner / Zipper's Max-flow Breather / Klock Werks Flare / Custom Dynamics LEDs