ok this has got to be some of the best advice i have ever bought. They're REALLY made of stainless steel, which means they can get 1/4-inch rust spots, but otherwise (if kept clean) they stay shiny even through upstate Pennsylvania winters. In addition, they are not made of too thin metal. If I had the money I would make the entire exhaust system out of the same material. And they are HUGE! Buggies, whatever you want. However, they're not exactly mechanically complex. They don't attach with a…