Austin Racing exhaust?

So I am very interested in Austin's GP 3 de cat system. I've talked to them numerous times and they have told me no tune is needed and are getting reasonable dyno numbers. I'm checking to see if any one has purchased a system from them or if there is any feedback on this system. I know from others they make a pretty good exhaust....pricey but the quality, performance and sound are definately there. Please let me know if you have any feedback good or bad. I'm hoping some type of a handheld tuning device comes out soon. My wife has a 2017 RSV4 RR and has the OFT it's awsome, hoping this is an option for the duc one day.

Thank