I can't help you with the baffles (never been inside the pipes) but I can offer you some positive info about eBay. The first thing you should do is file a 'fraud' claim with eBay (right away), look for it in the 'help' area. List the problem (missing baffles), be sure to detail the description of the auction listing. If you haven't deleted it yet, you can still find it by the item #. Print it out for reference. Ebay will provide you with the name and phone number of the seller (you probably already have the name, etc). Call the seller and ask for a partial refund (figure out what the altered pipes are worth) and let him know you will pursue the fraud complaint. If you wish documentation, email him with a detailed list of facts. You will photograph the pipes for eBay; you will take the pipes to a local dealer and ask him for a notorized letter describing the altered pipes and his opinion of their value, all of which you will provide eBay to substantiate your claim. If this doesn't motivate the seller to provide a refund, do all of the above and follow through the fraud claim with ebay. Usually, the threat is enough to get some of your money back but, if not, then, at least, you have the satisfaction of 'sticking' it back at the seller for misrepresentating the pipes. If you just roll over about it, the seller can just do it to someone else. I had a seller try to pull a fast one on me (also a muffler) and when I listed out these options, a refund appeared like magic. Luck.