I finally got my car back after a week sitting at the dealership. They did cover it under CPO warranty and waived my $50 deductable b/c I complained about it. The car really does idle smoother etc BUT the slight hiccup issue is not 100% solved. With the valve cleaning its not as rough and noticable but I can tell the slight surge is still present. I will just have to live with it.
07 335i-Prem pkg-Spts pkg-6 Spd-Coral red leather-Carbon Fiber trim-M3 steering wheel-M3 knob-Red stitched boots-Logic 7-Orion V4 angel eyes-Mtec 6k HID-LED Fogs-6k LED License light-Blk kidney grill-blk window trim-4" exhaust tips-JB4-BMS DCI-ER charge Pipe-HKS BOV-VRSF Catless Downpipes-GS FMIC-Mtech front-Mtech rear w/ performance diffusor-M3 Sides-Performance spoiler-LCI Tails-Roof spoiler-20% tint-Blk Calipers-19" Alufelgen SF-71