Okay guys here's the thing. We are in the middle of a Vortech install and I picked up an AEM no weld bung exhaust clamp. I have totally stock exhaust and when I researched the size, I kept getting 2.75" and my mechanic said 3". So with the clamp I went with the 2.75" - 3.0" size and it's barely big enough for the piping down from the o2 sensor before the cats. Does it have to go right there? I also heard to install it only on the drivers side bank? Is this true? Any help is appreciated. Has anyone else used the no weld do it yourself clamp? I'd love to see some photos of where you guys placed your wideband sensor please.