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MAF sensor diameter

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Old 02-09-2005, 09:41 PM
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I have a Jeg's magazine sitting here and there is a K&N cone filter in there for about $30.
Old 02-09-2005, 09:44 PM
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Originally Posted by KLUG'S SS
I have a Jeg's magazine sitting here and there is a K&N cone filter in there for about $30.
Good deal...Man, it's so much cheaper going the custom route!
Old 02-09-2005, 09:50 PM
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This was what I was going to use from the throttle body.


Exactly what size would I need to go over the throttle body to be able to clamp it tight? 3"?
Old 02-09-2005, 09:59 PM
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Jim[Tntrk53]runs a 3" rubber elbow,a short piece of 3"pipe,a clamp and a Airraid filter kit.It looks really clean and works great.
Old 02-09-2005, 10:22 PM
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Throttle body is 4". Manifold side of MAF is 3.5". Filter side of MAF is 4". So you need 4-3.5" reducer to fit maf to TB, then a 4" filter or 4" pipe to connect MAF to fresh air source.
Old 02-10-2005, 12:09 AM
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Ok, hopefully this will wrap up my questions. The throttlebody is 4", correct? Can I get a 90 degree rubber elbow to simply slide over the throttle body, then simply use a clamp to clamp it down? The only thing left that's kinda confusing me is the sizes. If I'm going with a rubber elbow and planning on sliding it over the throttlebody itself, would a 4" slide over the throttlebody since it is rubber, or would I have to go up 1/2 size? I'm thinking I would use a 4" to make sure it goes on tight, but just want to make absolutely sure that everything is correct before I order it.
Old 02-10-2005, 12:27 AM
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Yes a clamp will work.

The issue here is dealing with the rubber elbows. If they are made for fitting over a PVC pipe, like the fernco brand that people use, then its for the outside diameter of PVC pipe. That means a 3" internal PVC pipe may have a 3.5" external diameter, same as one side of the MAF. I've bought 4" rubber connectors that have been too big, and others that are just right. Some 3.5" stuff works on 4" TB. Your best bet is to take a tape measure to home depot/lowes and other hardware stores and measure the size of the hole.

I've also used some of the stock intake rubber parts to help complete my test intakes.
Old 02-10-2005, 12:47 AM
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i want to see pics of this when you get done. along with a parts list. pops 03 2500hd needs a intake
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