Guy in my club has a set of mac longtube headers that he says he'll sale for $50.00. Are they worth the trouble to put on? They aren't rusted. They have some kind of industrial coating (not ceramic) according to him. They look fine however. He said they were too close to the strut towers (his is a '93, mine is an '86). I was going to buy a new set of BBK ceramic shorties at some point, but would these be the better deal? You guys with mac longtubes...you like them?