REALLY loud horn...

Could you all recommend a horn that would be loud and long life without me having to sell a body part ? Thanks

Yup. Anything from a '50's car.

Installed a set of horns from a '56 Desoto on my old Ramcharger. Loud, with a long clear note. No mistaking it and wasn't ear blasting.

Best of all, it was almost plug and play. Just needed to change the connectors.