I heard the soundclips and bought the Motoblue RS's. They sent me Pypes Violators. I'm so glad they did because they're the perfect sound. And I only paid $149 for the mufflers, so I got a $50 discount. I'm not the only one, apparently. Others have had similar experiences with RPM. If they don't have something in stock, they'll ship you the next closest thing. To answer your question, I don't know if they own Motoblue, but they are the only company that sells Motoblue mufflers. If you're looking for a cheap muffler that sounds great, you can't go wrong with the Violators. They sound a lot better than the Magnaflows on my '05.
I have the Motoblue rs series axleback and love it!!! Yeah and Motoblue is what rpm calls the stuff that "their company" makes for them, i have numerous motoblue products with zero complaints and i have probably ordered between 30 to 40 items over the years from rpm with no problems, I buy stuff from there on a regualr basis
i'm looking to get the motoblue coilpac connectors.they use a wire in them instead of the spring like msd&ford.found out motoblue&granatilli both use micro tech for thier elect.ordered connector from jegs for $50 more,but i know i'll get what i order