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      04-29-2011, 09:43 AM   #175
4corners
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Drives: 2008 Jet Black M3 Coupe
Join Date: Feb 2011
Location: Yucca Valley, CA - Kelowna, BC

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2008 BMW M3  [0.00]
2007 Ford E350 4x4  [2.75]
Take the box all the way out. It's not hard. Undue the wire in the back, loosen the hose clamp, undue the two 10mm bolts, take the front plenum off, and tilt the thing out. Clean it inside and out before re-installing it with a new or cleaned filter. Get rid of the carbon filter too. If you have one.