Re: Knowledge of the Flowtech exhaust ???
I have Flowtech headers on a couple of my cars. They are a "bargain" brand product. Bought my headers at AutoZone for about $90 for a set. My good headers (not coated) cost $500 that may tell you something about the quality.
They do their job. No experience with the mufflers but I don't think they would be my first, second or third choice for my SRT.