Well there are a few things you could do. 1) call the seller and see if you can get a refund. 2) pay over $200 to get them installed. 3) take the hit, buy speed daddy's, and try to sell those. 4) find someone that can do the modifications to help you out. I would first see if you could send them back. I have never tinkered with these headers, but i've heard bad things. A little research goes a long way. Speed daddy's are about as direct fit you can get for $200. spend maybe another ~$40 on clamps and you have shiny new headers.