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i am replacing my Optima Redtop 34R in my 2009 GT500 for a new one and was wondering when i disconnect the battery will i lose my tune or any software i've installed from the computer or onboard elctronics etc.. also will i be dealing with any recalibrating nightmares when i reconnect new...

Hi All , is it necessary to disconnect batt. when replacing Coil- ons ? Thanks for any advice or explanation on the subject .

Hi All , I'm a new member to the forum , I've been looking for a tutorial on Spark Plug replacement on my 09 GT500 . I've got about 23k on the car bought it in jan. w/ 22k on the odometer . I've changed out the Supercharger oil and will be moving on to rear and tranny fluids this weekend , i'd...