Last fall I installed a Magnaflow Comp Series on my Auto R/T Challenger and have come to the conclusion that it's just to loud for my tastes. I paid something around $1,100 for it. It's not seen any snow/salt over the past winter. I am considering replacing it with something else, but would like to know if there is a market out there for my old system. I guess I would ask something like $500 for it. Let me know!