Good point, I got lost along the way. I have PTFB SFCs welded in. Also, their front frame horn brace welded in with nuts welded on the underside to firmly attach the sway bar bolts. I have mocked up their firewall braces and they fit perfectly. (Have to wait until I get an alignment to see if I can use the mounting tab as a UCA spacer.) Their product is real beefy and well made. My car is real straight so they must be pretty spot-on with their manufacturing specs. That is my "pro-touring" type experience. It happens to be with PTFB. The car sits on jackstands so, no real world handling experience to offer. Keyboard cowboy here.