congrats. i think what they meant is the ECU has new power it needs to know about, so just drive your car and give it plenty of gas so it properly used all the ponies you now have under the hoood. takes a bit of time for the entire thing to come together nicely is what they meant.

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2008 E82 135is JB2 Alpine White / Lemon
2008 E90 335i JB2 Monaco Blue/Grey
2007 E85 M Roadster Black/Black
2006 E60 550 w/ M Kit Silver/Black
2003 E46 M3 SMG w/ VMR V715 19's Blue/Black