I think that with a mail order tune then you just need to have the timing retarded a bit. Dont even mess with the fuel trims. If you have the Xcal then you can just retard it manually I think. The NX jet reccomendations should have the car running PIG RICH on spray. Like said above you dont want to just wash the cylinders with fuel...
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2003 DSG GT 5-speed
Hellion 62mm and Flowmaster catback.....
My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new
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