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Homemade cold air intake

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Old 09-07-2004, 11:37 AM
  #11  
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For my 03 Sierra. I put a K&N frop in in then I had a 3" mandrel bent tubing from an old Honda intake laying around and I cut a holes int he bottom of the stock airbox and mounted the 3" mandrel bent tubing into the box and behind the tow hook and walla instant Cold Air induction... It works great and looks stock..Unless your laying underneath it looking at the 3" chrome mandrel bent piping..
Old 09-07-2004, 11:56 AM
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here's the link:
http://www.silveradoss.com/forums/in...5053&hl=intake
Old 09-07-2004, 05:56 PM
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thanks , can you post pictures ?
Old 09-07-2004, 06:01 PM
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the link has pictures
Old 09-07-2004, 07:57 PM
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I made a cold air, and true ram air setup for my old 5.3 truck using the stock airbox.

I cut a 4" hole in the bottom, and mounted a dryer hose coupler in it. I bough a 4" dryer hose, and ran it to the duct in the bumper. I ran a number of different configs... The cool air intake worked okay, but off idle to mid throttle responce was poor. The true ram air version actually picked up power on the highway, but it ran like a **DOG** around town and sucked down gas like crazy.

I tried the above with one snorkel blocked, on open, vise versa. Paper and cotton gauze filters. Nothing provided the driveability, economy, or snappy throttle responce like the stock airbox.
Old 09-07-2004, 08:22 PM
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so what your saying is, stock is better right.
Old 09-07-2004, 08:27 PM
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what if i just cut a hole in the bottom of the box and top it off like stock so more air can come in.
Old 09-07-2004, 08:36 PM
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Yeeeaah, Personally I think stock is better, but I'm not really the norm.

I ran with just the hole in the bottom of the airbox, it made more noise, but didn't really get any faster. There was a dyno hanging around here by Redhawk (I believe), who dynoed his LQ4 6.0, with an without a hole in the airbox......... I actually want to say he lost power with it! I'll try to dig it up.
Old 01-28-2005, 11:15 AM
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sorry to be the thread necromancer but what about nixing the box all together and going from cone filter near the air dam to the maf to the tb?
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