i went by a muffler shop to see about removing my main converter and they guy told me my wouldnt run without it. wtf. kept going on about anything after a 98 wouldnt run right with it removed, and wants 395 to install a new one. He also said you cant buy mileliminators anymore either and refuses to do it. I guess my question is what would i need to do to remove my cat besides just put a piece of pipe in place of it.