So far I am not pleased with the emissions mod from VW. I Got my car back earlier this month its a 2009 TDI Jetta with 303,000 miles on it and it ran great when I took it in. Was getting around 45-46MPG while cruising 75MPH down the freeway. Now it's averaging 35MPG. Also, the car feels neutered and lost it's pep, it shifts really soft and weak and way too early for my driving style. I feel they really screwed it up and now it's not so fun to drive. I may look into removing what ever it was they did or perform a DPF delete. I have zero concern about warranty as the warranty they offer I'll exceed the mileage limits within a year as I drive 50-65,000 miles a year. Did anyone look into reversing the emission mod? What is entailed in doing so?