Thinking about getting some KB SubFrames for the vert. From the online reading they sound okay. Wanted to get some opinions from others who have used them. Let me know what you think. Thanks.
I've heard their subframes are pretty weak compared to others unless you get the full "Extreme Matrix System" that they sell. Otherwise, you'd probably be better off with Maximum Motorsports full-lengths or the new Steeda full-lengths. I'm getting the Steedas welded in tomorrow. They also include some sort of thick gauge cap that welds to the connector and the bottom of the lower torquebox on each side. Looks like a good setup so I'll report back tomorrow about them.
I had a set of D&D full lengths welded in last Saturday. I got them for $83 shipped. They're nice units and the car feels much better with them in there.
I could really feel the difference after the install. I can't give you any numbers from actual track runs though. Before the install, when breaking hard into a left turn followed immediately by a hard right, you could actually feel the car twist. It's better now.
I have no squeaks or creaks either and the jacking rails are handy.