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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#5
Tue, March 10th, 2009, 07:51 AM
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All the CAIs I tried made that horrible drone while towing our travel trailer. It was so loud you could not talk in the cab without yelling. That is what led me to develop the DWV intake mod. Check this out: http://dygytalworld.ehost-services13...l#faq_snorkel1 You get a little power bump from it and it keeps the factory noise dampers which makes it tolerable while towing.
Last edited by kd4crs; Tue, March 10th, 2009 at 10:57 AM. 
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