Frame Connectors, Bolt-On for 1982-1992 Camaro/Firebird, Doesn't fit stock exhaust but is extra heavy duty for race applications, A bolt-on frame connector that ties the front and rear sub frames together using 2 1/2" x 1-1/2" .120 wall steel tube. This creates a solid platform for increased perfomance levels. When paired up with Competition Engineering PN C2110 Bolt-On Ladder Bars and PN C8000 Tubular Control Arms, they make for a bullet proof suspension combo.