Called Hooker back. They said the Super Competition Turbo mufflers had not been used for 1 to 1.5 years and that Summit had the wrong info. Only the Aero Chamber mufflers are used now. The guy at Summit said he would try to verify the type of mufflers before shipment. Guess that means I had better check them on arrival which should be no later than Thursday. Total cost with shipping is $287.90. Sounds like a great deal. Thanks so much for the help and I'll keep you posted on how things go.