Just wanted to let people know that I had my oil changed today by Riverside Audi and they did a great job. While I was waiting for them to finish up I spoke to Carson Heter who is in charge of the APR side of the service department.
Riverside is not only friendly to tuners, but they are able to help with things like APR, Carbonio intakes, and other great stuff.
Carson has offered to "help" us here at AudiForums.Com with a little monetary relief. Mention to him that you heard about him and Riverside Audi here on the forums and he will help you out the best he can. I can tell you from my personal experience that it will be well worth it!

Carson Heter's phone number at Riverside Audi:
(201)-758-1600 X122