I have reached the crossroads of whether or not it would be money well spent to get a set of HFC's opposed to just keeping the OEM's. Looking at a set on BERKs, due to the easy transition; drop some NKG plugs in her, and tune it. I haven't heard alot of good about any after market HFC's, i heard the guts fall out of the aftermarket CATs, so i'm still open for suggestion. I have been told that the HP gains having the HFC's are minimal?My next step is a tune, Osiris flash is what I have been told is the best flash out there and is about the last thing i can do to get more RWHP without Supercharging or a single stage Turbo application. At the presant I have a custom dual system, with a maganaflow X pipe, going duals all the way out to the Maganaflow muffler, no resonators between the Xpipe and muffler. She is breathing. What do you guys think? Get the HFC's, drop the NKG plugs in her, and flash it? Or do all the above and keep the OEM Cats? Your thoughts are greatly appricated.