Used unmarried Cobb AP AP3-VLK-001, great condition with box/case/cables etc. It has most of the Cobb files on it. I was using a custom tune but it's locked to my VIN. If you want to run high flow cat/catless a J spacer will prevent a CEL. $450 shipped SOLD
CTS high flow catted downpipe, 3" with reducer to stock cat back, great condition only about 2500 miles on it. Fitment was pretty good, one of the hangers at the front was probably not in the perfect location but I didn't bother fixing it. $350 shipped SOLD
CTS cold air intake, installed at same time as down pipe, CCTA spec, $200 shipped