I did a full EVO exhaust, not just a mid pipe. I liked that the factory heat shields could be re-used with the larger EVO pipe. I did have to source a larger clamps though. Also, a newer higher quality V-band clamp was included with the exhaust from EVO. Been happy with the exhaust so far.
I can't speak to the EVO pipe, but I did recently purchase/install the RPM pipe. I was very impressed with the quality and just overall. Do yourself a favor and get the HD Clamp as well. Pro-Tip: U can use looped Nylon string for the springs.