Silencer Ring
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The plastic thing on the top that says 6.6 is suppose to work as a silencer. I took it off the one we had and you could hear it better but nothing spectacular, not worth $35. In the picture, the place circled in yellow, you put one of those rubber stoppers with the wingnut on top in there and put that big plastic piece back on. It really isn't worth doing though unless you swiss cheese the air box.
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CumminsAtYa
6.7 Liter Dodge Cummins 07.5-12
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03-28-2015 06:36 PM