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About NorthernAT4

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  1. I ordered it through tdot performance in Canada. They had to order it from Borla. 3” in 3” out and my muffler shop fit it up and took out the flappers
  2. I cut both flappers out and installed a borla S type muffler. Nice growl. No drone.
  3. Installed NFAB predator pro running boards and welded up a Borla S type muffler. Sounds like the GM performance exhaust now. Hard to tell them apart. Little louder when revved up though. No drone. Can kinda hear the DFM doing its thing now. Ceramic coated a couple weeks ago with Jetseal. Waiting to put the level kit on and 34s
  4. 2019 AT4 6.2L crew cab standard box. so I dove under the truck to look around a bit and noticed my truck has no mesh screens along the exhaust. It only has the one mesh flex coupler after the Y pipe. It also has the 2 flapper valves. Anyone else have this setup or is this something Canada trucks get ? https://www.dropbox.com/s/2nic30pft4aq0ac/Photo 2019-07-14%2C 11 42 52.jpg?dl=0 https://www.dropbox.com/s/c5y07xhrfnyliz5/Photo 2019-07-14%2C 11 38 05.jpg?dl=0 https://www.dropbox.com/s/r80cngmsfcx8513/Photo 2019-07-14%2C 11 38 12.jpg?dl=0
  5. Alrighty that took a left turn. Anyone have them then on the 2019 truck yet? How they look?
  6. Hey just got my new at4 and am curious if anyone is running the N-FAB nerf steps on the 2019 and up trucks. I like the low profile of them Thanks!
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