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  1. 01-04.5 LB7 Performance Parts Discussion
    Has any one used a duramilage brand chip? I am a new duramax owner, but I have had everthing else, cummins, powerstroke, gas, chiped them all with no problems. The thing is I have not hered of any one useing the duramilage to know if it good or not. It sounds great garranted 4 miles to gallon...
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