Good for: Mini bikes, go karts, generators... multipurpose. This been tested on: Predator Max 459, Duro XP16HPE 420cc, Duro XP18HPE 457cc, Predator 8HP (301cc) OHV, Predator 13 HP (420cc) Engine from harbor freight. Made in U.S.A. There is no paint on this Exhaust, the material is polished mild steel, if you want I can sandblast it at no cost (Send me a separate message at the time of the order) you can paint it any color you like, I recommend rust Oleum 2000f, you have to order it separately .