switching from my 10 bolt 373 to 9in 411 calibration ???
#1
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Ok guys I need to know if I can drive my car before getting Speedo recalibrated? I am going to 411 from my 373.. I have a 02. A4 .. my buddy does have hp tuners but I need to get credits how many do I need to buy to correct my Speedo ? seems confusing does anyone have a file I can download