I was afraid someone would ask. I paid just under $2000 total. (Does this put my sanity into question?) The CDV delete was done by my BMW dealer with no questions asked, and ..... at no cost. (They forgot to do it when I had the car in for routine service so picked up the cost for the inconvenience of me having to return.) I think it took them about 45 minutes.
'09 128i 6Sp Man Sport (263 18" wheels), Space Grey / Coral Red leather, BMW Perf Intake, Exhaust & Suspension, 3-Stage Manifold, AA Ver 2 tune, Carbon Filter & CDV Delete, Yoko S-Drives