Rewita fought the forfeiture and gave evidence before Justice Wylie.
He said he received $180,000 in fees from Black Power members over the last six years and $20,000 every year from selling gang merchandise.
Evidence given to the High Court included the fact that police once found $46,930 cash in his home.
Rewita also lived in a Mt Maunganui apartment for 74 nights and paid $12,754 in cash.
Other income was raised from buying and selling cars, cleaning cars, breeding dogs and working as a male prostitute.
Justice Wylie said Rewita was "not a convincing witness".
He ordered that he forfeit nearly $240,000 of criminal profit.
The Waikato - Bay of Plenty Asset Recovery Unit had conducted a separate investigation into Rewita's financial activities and had been able to restrain cash and assets under the Act.
"This case illustrates how the legislation is significantly enhancing our ability to target the profits of gangs and organised criminals," said Detective Inspector Tim Anderson, District Manager Criminal Investigations of
Bay of Plenty Police.
Detective Sergeant Craig Hamilton, manager of the Waikato-Bay of Plenty asset recovery unit, said the judgment was significant because it was made despite Rewita being acquitted on drug charges.
"He has subsequently been convicted on later drug charges, but the forfeiture order on his cars and cash was made before that conviction was handed down."
Rewita, who pleaded guilty to one count each of possession of methamphetamine for supply and selling methamphetamine, plus two counts of driving while disqualified (third or subsequent) was sentenced in Tauranga District Court on August 28.