These are pre-cut holes, that you must weld into your existing firewall. Could also be glued in with professional grade sealant. This kit includes everything for the firewall, does not include A/C blower, at the top of the rain tray.
Shipping: Shipping is free via USPS 2 Day Priority Mail, only applicable in USA. Choose "More Carriers" - > USPS. This option will only populate for US shipping addresses.