well i bought what i thought was a L69 Y pipe and the whole 3" system turned out to be a Y pipe set up for shorty headers. now what should i do with this system. i dont have shorty headers and it wont bolt up to the set of my L69 manifolds that i have. i feel stuck i spent 150 bucks on a used exhuast system, in good condition but used. i bought it from camaro specialites, they already have the labor and time invested in removing it from the car and i dont really think they want to take it back. i made it quite clear what i wanted when i went there. the parts that i bought even came off a of a 1984 camaro z28 that was in their yard(car did not have engine or manifolds, so i didnt know that i was equiped with headers. so i have a Y pipe that wont work(with what i have), a higher flow cat, the pipe that extends from cat to muffler, a flowmaster muffler and 2 exit pipes. what should i do? everything is slighty rusted but still very solid