I got mine a few weeks ago. It made some more noise, which is cool.
Had to cut the flange hole on the Cat side (no big issue), it also pushed the rear box as slightly further back.
Lighter than the OE mid pipe obviously, as there is no silencer. the flange holes isn't actually 2.5, but the pipes is.
Not completely satisfied for what I was looking for, BUT I am comparing to my civic, which has a full decat exhaust system.
It does the job, not bad for what you get.
Just gotta sort the alignment out and I ll be getting a catback