I've wanted a electric cutout since I joined this site and was bit by the truck bug. As it turns out Santa was kind and brought me one for Christmas this year. Couldn't have been an hour after getting home I had that sucker slapped on and wired in.

2008 GMC Sierra 5.3 with QTP Cutout - YouTube


Current exhaust consists of Pacesetter longtubes with a custom y pipe finagled around a deep 4l80e pan and modified factory cross member. As for the muffler set, smaller Magnaflow up front followed by the cutout then a larger Magnaflow finished with a flowmaster universal tailpipe kit dumped just before the bumper.
Located the cutout between the mufflers as an attempt to tame the snarly beast and smooth things a bit. (yes, I’m old but used slip joints so the order can be modified at ease) I’m really happy with it, quiet while daily driving, awesome when dragging the camping trailer, yet roars when skinny pedal is mashed.

Parts used-
14589 - 5x11x22
14249 - 5x8x18
10785 - cutout
15902 - tailpipe
QTEC30 - electric cutout

 

Sound good!!