I think it's something he made up himself because it looks nicer.

 

I posted about this cat a few times. I researched all the HFCs on the market over a year ago(even the expensive JDM SARD or Amuse HFC's) and I settled on the EVS tuning HFC. I was told by Josh at Evasive that they stand by this HFC and even give a 1 year warranty on it. The Berk HFC catalyst core brake loose a lot, mainly on race cars or boosted cars. The EVS tuning HFC uses a different magnaflow catalyst than the berk and has better welds. The EVS tuning HFC will give you a louder exhaust with a little more exhaust smell because of the higher flowing Magnaflow catalyst used.

I own a EVS tuning HFC and made 7 HP and almost 5 lbft compared to the random technology HFC with <700 miles on it.