Well, it really isn’t a handling mod. It basically takes a little of the slop out of the drive train. Probably the most noticeable difference would be during shifting, a little less motor twist.
I flipped mine over a year ago, can’t say it has made much difference. I’m sure there are ppl that would tell you flipping them (or going solid mounts) is worth a tenth at the track. And they would probably be correct, but for normal driving it is transparent IMHO.
And yes it is free a mod, you basically just need two wrenches, some WD-40 and 10 minutes
