The offenders were found guilty of conspiracy to import 112 kg of cocaine and possession for the purpose of trafficking.
The cocaine was hidden in wooden pallets in a sea container shipped from Guyana.
The court found both offenders were principal participants in a sophisticated importation scheme.
Buttazzoni, who had a prior drug conviction in the US and made threats of violence, was sentenced to 17 years.
Ramlall, a first-time offender who received the pallets at his home, was sentenced to 15 years.
Both received credit for pre-sentence custody and house arrest.