2 out of 3 holes have been covered with a rust proof coating covering the holes. Not really a big deal, just needed drilling. The hardware consisted of 3 bolts with no bolts for the air cleaner studs, which means I can't install my air filter until I can get longer bolts from another supplier. All in all it's not the best or most complete set and I'd say it's better to go with a more established product like Specter or Airraid.