I installed my DMH cutout on Friday. The shop cut a hole and welded on a 3” pipe right where the existing exhaust came together. Everything went together smoothly and worked perfectly. I have the switch in the fascia panel under the cup holder with my other switches that control auxiliary driving lights and the halo rings. I have a direct hook up to the battery which is nice because I can close it after I shut the engine off and actually here it click closed. I have a video link to youtube if anyone would like to hear it.
http://www.youtube.com/watch?v=526xtAU5V0Q

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that sounds awesome! I want one