Originally Posted by AKlowriderZ71 (Post 5045525)

But to do a 4" the right way IMO, I have ARH build me a custom y-pipe. I suppose you could buy a 3 to 4" merge pipe to accomplish this, but those are expensive....

Here's a few pics, and an idle vid. This is the MBRP diesel kit, with a catless Y.

http://i557.photobucket.com/albums/s...f/79e85ae5.jpg
http://i557.photobucket.com/albums/s...f/31030c81.jpg
http://i557.photobucket.com/albums/s...f/753cb7cb.jpg
http://i557.photobucket.com/albums/s...f/699c6429.jpg
http://i557.photobucket.com/albums/s...f/907f8b60.jpg
http://i557.photobucket.com/albums/s...f/b446310d.jpg
http://i557.photobucket.com/albums/s...f/04f19d0f.jpg
http://i557.photobucket.com/albums/s...h_3e7f123d.jpg

Idle vid is inside the shop, so there's some echo...

Originally Posted by KC_kid (Post 5045779)

I hope you got one hell of a good price for that AR. You can't find them in KS right now. literally none available, no matter the price. Those things are worth their weight in gold right now.

Originally Posted by Vdrsnk04 (Post 5045699)

That sounds really good! What kind of modifications had to be done to put the diesel 4" catback on?

Originally Posted by AKlowriderZ71 (Post 5045921)

Well, it's a lot easier on the GMT900 chassis, than the GMT800 chassis. The pics that I posted here lay it out pretty well IMO. Most of the modifying was done to shorten the hangers, the pipes fit pretty well using an MBRP muffler delete cat-back. Their "no-drone" muffler is sold seperately.

Originally Posted by JCunningham (Post 5047509)

What would my oem y pipe be worth if i sold it? there 3 cats on there.