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Re: Cold start problem
A bad O2 should throw a code. If you're having problems by all means take out the K&N and put the stock filter back in. Don't want to give the dealership any excuse for a way out.
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2005 V10, AT, Fx4 Dark Stone Metalic, Crewcab F350, 4.10LS, shortbed, towcomand, Extang tonno **SOLD**
2007 Dodge 3500 Quadcab, 4x2, 6.7L Cummins, a/t, longbed, 4x2
Silence is golden. Duct tape is silver.
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