I have them on my 97 civic EX sedan and they feel about as effective as a front strut bar: aka not much. I can't complain because they cost as much as a strut bar.

Anyways, my curiosity got the better of me so that's why I got them (on sale, group buy). The way they go on, and the way they are shaped, doesn't seem like it would suddenly cause the chassis to get shoved up your nose. Korbach says they designed them so that in a front collision, they would crumple. Yes, it's still stiffer than stock, so that's more dangerous but it's not clear how much more. Early airbag deployment is a concern but so far has not been discovered as an issue.

I've read all those people talking about "dramatic difference" and I have NO IDEA WHAT THESE PEOPLE ARE TALKING ABOUT. The frame locks seem to have made turn in more precise, nothing else. I like the effect on turn in, which is the only reason why I keep them on. But I still feel all the bumps.

They help stiffen the chassis a little against certain forces and that's all it feels like it improves. My car modifications had the goal of making the car more fun to drive, which pretty much was all about street handling. Since I still have stock rubber bushings, I feel that the rubber bushings are the weak link in my chassis compliance and therefore the frame locks were a stronger link further up the chain.

Think of it as a strut bar. I think it's the same category, so set your expectations accordingly.

BTW, here are my car handling mods:
- 15" '99 Si rims
- 195/55/15 yokohama ES100
- H&R OE sport springs with KYB AGX shocks set at 2/4 and 4/8
- '99 Si rear 13mm sway bar with ES sway bar bushings
- washer trick (1 washer thick) to fix rear camber
- type R replica front strut bar