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gillguy 03-22-2009, 05:33 PM Anyone installed this on an '07? MBRP XP/Pro Series Front Pipe 2006 and newer GM LBZ Duramax GMS9421 I just want to get rid of the CAT. I have a stock exhaust. Thanks beachtruck 03-22-2009, 05:51 PM Any idea how much they get for it? I want to do the same thing. Should be alot cheaper than replacing the whole system. I have a 07 LBZ 2500HD classic gralewaj 03-22-2009, 05:52 PM I just did mine on Friday. I had been running the MBRP cat back system and decided it was time for the kitty to go away. Getting the front pipe with the cat out of the truck was one of the hardest things I've done. I had wanted to keep the front pipe intact so I could easily change it out If I should ever have to, but without being able to drop the tranny brace, it doesn't come out without a sawzall. While I was under there I also pulled the factory downpipe and installed a Diamond Eye turbo downpipe. Well worth the hassels!! beachtruck 03-22-2009, 06:14 PM Just checked price. 78 dollars GMS9421 LBZFireman 03-23-2009, 08:08 AM My front pipe came out without cutting. Took about 10 minutes and removed the exhaust bracket that mounts to the trans. I am now running 4" straight duals... If you are going to retain the stock cat back portion just make sure you get a 4-3.5" reducer... hendershot106 03-23-2009, 12:47 PM Just checked price. 78 dollars GMS9421 is that a GM dealer parts # to go buy the turbo to cat back stock older downpipe????? DSTRBD 03-23-2009, 12:49 PM We have them on our site. It will not be a direct replacement for the stock front-pipe though. It is made to be used with the MBRP 4" or 5" kit on the 06-07 trucks. It is a 4" pipe so a reducer will be needed to connect it to the stock system like LBZfireman said. hendershot106 03-23-2009, 12:50 PM We have them on our site. It will not be a direct replacement for the stock front-pipe though. It is made to be used with the MBRP 4" or 5" kit on the 06-07 trucks. It is a 4" pipe so a reducer will be needed to connect it to the stock system like LBZfireman said. to clarify, is stock size 3.5" ??? LBZFireman 03-23-2009, 02:08 PM Yes, stock is 3.5" | ||