Xforce is not just about saving money, it's value for money + personal preference. Aren't ALL the above exhausts except some variants made in China? Seems so. DiFilippo is a classic case, yet it is personal preference that makes people shell out 5 - 10x what it's worth in third world base cost plus shipping because of brand / sound preference (questionable 5/10kw not worth +$3000).
Drone is technical fact with GenIV, not opinion or preference, and I'm yet to see any technical evidence of the effectiveness of no-drone stock muffler replacement vs personal opinion.
Arguing one pipe is better because of country of origin, or who owns the patent to crossing twin exhaust pipes in an ideal way (Sureflo, an Aussie company) vs just sorta copying it but not exactly, seems a bit hypocritical and complicated when the net effect is sweet bugger all.
Seems most aftermarket performance exhausts are Chinese steel pipes, take your pick of grade and design to your most fanciful preference.
I don't like crispy, clear, raspy exhausts, neither do my neighbours, but I'm never compelled to reply that they are terrible at all, certainly not every time someone mentions that brand in a post. Puerile.
^ What he said.