This is from their website. Im not sure if the price is accurate though.

http://www.spracingonline.com/store/...ctivated_/3674

Right after the dp before the cross member

Attachment 108527

Attachment 108528

There are you guys running the wires and switch?

I have my SP boost activated cutout installed after the crossmember, before the muffler. There was no space to fit it immediatly after the DP meets the horizontal exhaust pipe.

https://www.performancetrucks.net/fo...in-cutout-jpeg

My cutout is just before the muffler right after the crossmember, it's a 2011 ccsb like yours. There is a body drain plug under the rear passengers floor mat area. I ran my switch inside my center console and ran the wiring down under the carpet under the passenger seat and out through that drain plug. Only leaves around 12" or so of wiring outside the cab excluding the pigtail off the qtp cutout. Very clean and easy.

Another pic of mine

Attachment 108449

Here my cutout pipe. Im waitting in get the New trans install and the new cross member build to install it. I will post up more pics soon.
Attachment 68170Attachment 68171