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Discussion Starter #1
:loud:i have the hemi 2003, i was getting decent (what i thought was for a hemi)
12 to 16 mpg, i changed my factory champion plugs out and installed ngk 5306's and now my mileage has sucked 10 to 12 mpg. is this possible anybody else had this problem?

thx guys
 

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Discussion Starter #3
odometer and overdead console
 
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