I've been looking into this dmh cutout. Does anybody have any experience with them. I bought an 08 gmc Sierra crew w 5.3 and installed a magnaflow muffler and waiting on my vararam tripower to come in today. Questions I have: performance? where do I weld it on at?

 

It might add a few ponies, not sure if anyone has a dyno graph on these.
You weld it on right behind the muffler bearings lol

 

Typically goes after the y and before the muffler. Ive had mine for 4+ years and still works great.

 

I had the DMH cutout on my crew cab and now it's on my little bros truck been working great nno problems. I had mine mounted before my factory muffler so it opened up the truck but in your case being a magnaflow and prob straight through the only thing you will be gaining will be sound.

 

Thanks guys. I'm new to the truck world so I've been asking alot of questions.

 

Heres just some pics of how I mounted mine on my crew cab before the factory muffler... excuse the dirty truck and cheap jegs steel cutout I have a QTP stainless cutout pipe on my new truck and looks 100 times better.