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      01-06-2012, 08:09 AM   #65
axis
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Drives: 2011 Steel Gray C 300
Join Date: Dec 2010
Location: Florida

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Quote:
Originally Posted by adamsclubs View Post
Axis, the 3" duct is air tight. The gap you see in the picture has no impact.

I had tried a 4" ABS coupler (actually a 3" coupler with 3.5" ID), could not fit in the tight space.

Apex's mod is the best you can get with the stock box.

I am referring to how two of the plastic 3" adapters had to be used in order to make an air tight seal. There is a slight gap around the square base of the adapter that makes using two a necessity. I am hoping the 4" one will cover it completely. Check the picture. The red box is where i'm thinking the 4" adapter I bought should cover the gap. You can see the gap I am referring to with the green arrow. And the filters I am looking at with the 4" fitament are available in the same range of width / length as the 3" inlet one, so there shouldn't be any problems there either.
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Last edited by axis; 01-06-2012 at 08:10 AM. Reason: forgot the pic