Ah, well, had you gotten the Warrtalon package from Buschur, it would have been $1270 total for the TBE, gauge, pod, MBC, and flash.
However, that's a Buschur flash through the mail or email, and now you'll be getting a custom tune locally for cheap, so it's still a good deal.
20HP is on the very low end of what you'll gain with a custom flash on those mods. I would expect not only 20 WHEEL HP, but probably closer to 40whp. You also don't need any equipment to get flashed, although it is definitely a good idea to get the stuff for yourself.