Up for sale is my full Kooks 3" cat back. I am the second owner of the car and replaced this set with a borla cat back. Not sure how many miles were on this exhaust, but I changed this system out at 14,600, they were on the car when I purchased at 8,000 miles, so I would guess roughly 10,000 miles are on these. $750 shipped. Pm me if you are interested. This is a video taken of the exhaust right before I switched it.