Exhausts and intakes are also wildly popular, even when on cars where it makes little difference. I wouldn't want a mod based purely on popularity.
Anyway, good to know that it's worthwhile even on the street. It'll be a while before I get a good feel for the handling, but so far, I've been satisfied. I know it's not super sporty, but I've been pleasantly surprised how well it tackles corners. Good to know the options,tho.
The question regarding the TSX was rhetorical. The replacement bar was noticeably stiffer. 2mm can be significant.