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  1. Please help!! System too rich?!

    General E46 Forum
    I got the stage 3 tuning on my 01 325i from BMW years ago when we installed Dinan Throttle body & Dinan Cold Air Intake. This weekend I completely removedmy throttle body to clean the door (wasn't too gunky), as well as replacing my air filter (really needed to be changed).. Burnt through some...