I'm bringing this thread back from the dead so we can talk about all of our cars in one place.
I took my car to Underground Autosports in Hoffman Estates Illinois. They were a sponsor at one of the Chicago Region PDX events this year so I went to check them out.
I did 3 pulls on the dyno this afternoon with essentially all of the power adder stuff you can do in STX.
2010 128i N51
AA headers
Frankenstein Exhaust (Supersprint mid pipes, MF High Flow Spun Cats, MF Cat Back)
aFe "stage 2" intake
AA "stage 2" tune
215hp & 221lb/ft
My graph looks almost identical to the ones that are posted on the AA website. Kudos to them for accurately marketing their product and posting real numbers on their site.