Hey Smufy, here is the "short" answer - "Freedom Perfomance"
The long answer is this >> They are located in California, a google search brings up their website, which doesn't provide much besides contact info.
Freedom Perfomance is the only company I found that still offered a full exhaust option for VTX's . Cobra has slip ons, but I liked the look of the 2 into 1 single pipe better, and when I got the bike, it still had the factory pipes and was too quiet.
To further inform, I googled and read lots of reviews on all the forums, which turned up quite a few negative reviews, so I was "REALLY" unsure about their product, but decided what the hell, it's only $$
Thus far, I have nothing to complain about. The sound is really good, the look is good, the install and brackets fit right and are plenty stout, and I am happy. No complaints about the product. They also offer a "quiet" baffle which I ordered. It reduced the rumble by about 1/2. I like both and can't make up my mind which is better. Either way, the sound is good.
Freedom Perfomance can be found on JP Cycles, Dennis Kirk, Revzilla etc.. If you want to buy directly, they will sell directly, I'm not sure if they have full time people dedicated to sales, but I had no problems.
I didn't want to give you a long answer. lol