Everything is brand new from the exhaust vendor Phabbing. The system was built on a Camaro and if you're a Trans Am owner you may need some adjusting on the tips in order to center them in your factory valance. This is a big system and may ship in multiple boxes with signature confirmation required. The clamps are for the catback, we recommend getting the tips welded on for perfect alignment. Please message us with any questions and we will get back asap, we are in the shop 9-5 daily. If you need a quote for custom installation please email us.