Exhaust if off and the seller is not willing to refund. I should have know. The deal was too good to be true. The seller swears that the exhaust was for an ST but after i removed the exhaust the measurements were not even close. Pipe size was 2 inches and the muffler tips were 3 inches not 3.19 inches. Clamps measured 2 inches as well, not even close to the 2.25 clamp and pipe that was stated in the ebay ad. Now the seller wants to take me to small clams court because he sold me a non ST FRPP CBE that was sold to him and installed by his dealership. So by his dealership selling it and installing it that makes it the correct system. Some sellers are just lost. He even claims that Borla didn't manufacture the exhaust after I spoke with Borla today, as i love in Port Hueneme which is down the street from the Borla Factory.