Vband Clamp Set 2.5" - Quick ReleaseStainless Steel Quick Release V Band Clamp Kit 2. 5" 63. 5mm Looking to securely connect your turbo to your exhaust system? This 2. 5" (63. 5mm) V Band Clamp Kit is exactly what you need. Often, turbos feature a round pipe outlet and that's where a V band setup comes in. One flange welds onto the back of your turbo, the other onto your exhaust. Then, the included quick release stainless clamp joins the two, creating a tight, leak free seal thats easy