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Custom 4" Intake Tube

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Old 05-10-2015, 06:23 PM
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Default Custom 4" Intake Tube

It's been a while since I have posted. I recently sold my old 2004 Silverad RC/SB 4x4 that had a 6.0, MP112, and 4L80. The engine lost oil pressure and eventually died.

Anyways 2-weeks ago I picked up a 2011 Sierra Denali AWD. it doesn't make the power of my old truck but has pretty good snot for such a big truck.

Anyways, I am planning on basic modifications for this truck or the wife will kill me. I recently ground out all the grooves in the stock airbox and the lid as well as opened the inlet side of the box (towards the fender). I also matched the fender by cutting it with a body saw. Today I removed the stock intake (maze) tube and made my own intake. It's made from 4" mild steel tubing and uses a 3.5" x 4" silicon coupler on the MAF and. 4" elbow on the TB side. I also made a bung that I welded to the tube for the PCV line. Lastly I secured it using T-bolt clamps. It's not finished but functionally it is done.

Now I'm looking for nanofiber air filter similar to the Amsoil EAA123 which may be discontinued.

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Old 05-10-2015, 07:07 PM
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Looks good! Now all it needs is some matte black paint on the piping! great job though!
Old 05-10-2015, 08:48 PM
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Looks really good. Lets see the rest of the truck!

And watch for surface rust etc on that intake tube. I think most people use alum for a reason.
Old 05-10-2015, 10:39 PM
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DEI high temp ceramic paint, inside and out.
Old 05-19-2015, 08:18 PM
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All ground down and painted with Rustoleum Professional Bedliner spray. I think it gives an OEM type look. Also a (bad) picture of the truck. Next is a Blackbear tune via Autocal...

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Old 05-20-2015, 06:10 PM
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I like the look of that intake tube a LOT. Nice work, dude.

I also like what Justin at Black Bear Performance did for my truck with an AutoCal tune - GREAT choice! Keep the updates coming!
Old 05-20-2015, 06:37 PM
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Thanks for the comments. I used Justin (and the AutoCal) for my 2004 and I couldnt be happier with his service and the results. I know the peak power from the tune will not be too significant due to the factory tune being fairly good but I know the factory 6-speed tune is holding her back a lot. Plus the potential MPH gains is icing on the cake!!
Old 05-24-2015, 08:41 PM
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Solid fabrication skills...looks great!
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