supposedly there is a garrett turbo pakage in the works for the S4 by the guys at ATP turbo (K04's are better than the stock K03s but still kind of a sucky turbo). Do you mind disclosing purchace price? Most in that mileage range seem to be 15-17.5k. In a couple more years when they are 13-15k I will choose between one of those and an R32. Both have great potential. Congratulations!