The Dynatech 2.50 Clamp Collar Kit is an excellent way to connect exhaust components on racing applications. Lightweight and easy to remove, it is a must-have for any racer. The stainless steel clamp prevents the clamp from rusting to any connections. The single bolt allows for easy disassembly when needing to remove a component. The clamp also allows the U-Tab by simply rotating the clamp. Kit comes with stainless steel clamp, bolt, nut and extra U-Tab to install onto the connecting exhaust tube.