GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

So what longtubes fit NNBS 4x4 afterall?

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Old 04-22-2012 | 02:54 PM
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My obx headers clear everything fine, but I did have to weld one joint to get it to stop leaking
Old 04-23-2012 | 01:26 PM
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Anyone have experience with the LPP headers? seem lil cheaper than the rest

LPP GM Truck exhaust
Old 04-23-2012 | 03:06 PM
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Originally Posted by vettelovralexand
Put ARH 1 7/8" on my dads 2011 NHT 4x4 and they fit extremely well and didn't require any modifications to the truck or headers to fit.
My experience as well. Perfect fit, no problems. I thought 1 7/8" might get close to the bolt head on the steering shaft, but there's still plenty of clearance.
Old 04-23-2012 | 03:58 PM
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To add to what I said earlier, I had more trouble removing the factory O2 sensors than I did with any portion of the reinstall. I dropped the trans crossmember and removed the Y pipe with the sensors still installed and ended up with only 1 of 4 that came out without messing up the threads. Luckily I had the correct die to recut the threads to avoid having to buy new sensors. This was on a truck with only ~780 miles on it. There was plenty of clearance to put both the driver and passenger side in from the bottom. At first glance I thought that I may have to flip the bolt in the steering shaft, but it didn't matter once they were in place and bolted down, lots of extra room.
Old 04-23-2012 | 04:07 PM
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Originally Posted by Smokymance
Anyone have experience with the LPP headers? seem lil cheaper than the rest

LPP GM Truck exhaust
good price for stainless if you don't need cats.
Old 04-23-2012 | 04:53 PM
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Those look really nice but i at least need the resonators that look like cats.
Old 04-24-2012 | 09:03 PM
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I would love to have a set of ARH longtubes, but the price is a little high for me, and not very many used ones come up for sale all too often. Just all depends on how much I can save-up before the blackbear tune in Pittsburgh at the end of May. Le sigh...
Old 04-25-2012 | 07:22 AM
  #18  
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Originally Posted by Allgonoshow
good price for stainless if you don't need cats.
I agree...or might add "one" cat after the Y-pipe before the stock cat-back system like i have seen around here...
Old 04-25-2012 | 10:15 AM
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Obx sells a decent looking set of headers
OBX LONG TUBE SS304 HEADER 07+ GMC 1500 SERIES 6.2L ALL | eBay
Catted version
OBX Catted Header GM 07-08 1500 Envoy Yukon Sierra 6.2L | eBay

Says they're for a 6.2 but the flange on the ypipe won't work for a 6.2 catback.
Old 04-25-2012 | 04:41 PM
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wonder why the different prices on the above links


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