Hey Junke what'up, Sorry i've never heard of this company, i'm not a verter guru either way, but let me ask you, can you get it cheap because it was never used but being sold as used?, or cheap because you're getting the cheap version ? i did a search, and the stage 3 for the 6l80e is very cheap, but it might be possible is just a re-stalled stocker ?
We can go cheap with headers, but i wouldn't go cheap on a verter, not that i'm saying we should spend and arm and a leg in a triple clutch unit, but normally cheap verters are just remanufactured cheapo ones that wouldn't hold a lot in our cars, in this case, it might be possible that the stage 3 is a re-stalled stocker, but was it built as new and re-stalled, or rebuilt from a failed one, and then re-stalled ? or worst, a cheapo unit from another trans, re-stalled and built like one for a 6L80e trans?
Called them up and ask them what's the difference between stage 3 and 5, even the 5 is a little cheaper than a Yank ,Circle D, or Precision single disk. the difference between cheap converters is that they don't last too much in daily duties in performance applications, normally the clutch material is weak, and other components are not built to last, again, i don't want to discourage you from a deal, just evaluate your options with the manufacturer, and people who have had experience with this verter in other sites, i don't think you'll find many people who have had this particular brand around here.
Out of topic, did you get the cats setup ?
2012 Mustang GT, M6, 3.73's, Base/Brembo Package
3" H Pipe/Stock cats, Res!/3" pipes, Magnaflow 14419's AB, UPR Catch Can
HPTuners Pro v2.25 | Street Tuned
2010 Silverado 1500 LT Crew 5.3L
Magnaflow 14619, K&N Drop Filter, Airraid MIT, UPR Catch Can, American Outlaw Deputy 17x9, BFG 285/70/17 TKO, Bilstein 5100's
Hptuners 2.24 Pro / Street Tuned