5 Link II is purely steeda's creation, and they butched the effect of long panhard by shortening it substantially. The shorter the panhard, the more side to side motion it will have when the axle is moving up and down, and the more difference there will be side to side in rear roll center, that can affect the handling from one side to other. Another problem is that even when you have that short, the rear exit exhaust installation is still very tricky, and requires a trip to exhaust shop. You're supposed to either cut up your tips into tiny pieces or get a bunch of piping and put it all together like a puzzle. It's amazing how your view of the system will change once you see the installation instructions. :hammer:
Personally when time comes, I'm probably going with EVM system. Third link setup they have is very similar to what comes on the S197 Mustangs, and those have excellent traction, with very little brake dive, and no bind while in movement. It's a lighter setup than just about any other setup I've seen. For lateral axle locator, I'm still up in the air for this one. Maximum Motorsports panhard bar is cheap and lightweight. EVM Watts Link is bad ass, and will work better than panhard bar. Both of the systems work well, and both allow rear exit exhaust. I guess I just have to wait and see.