For sale is a set of Active Autowerke headers for the N52 $450/obo. They were installed in January of this year and are only 10 months old and are in excellent condition. The headers were paired with a StageFP tune and made great power in the midrange and top end. The headers add a bit of volume to the exhaust and makes it sound throatier.
They were removed yesterday and will not be reinstalled because the car is being sold to my nephew. I have no use for the headers anymore and that's why they are for sale. Local pickup in SoCal only, I will not ship. I will be in the Bay Area next week, so if any bay area peeps are interested, let me know.