The Sugar Act was a modified version of the Molasses act of 1733 which was about to expire and was Great Britain's first attempt to get money to pay for the expensive French-Indian War, which when passed they tried to conceal their true intentions. This act cut the tax of molasses in half (now three pence). Parliament passed this act in hope of the tax being collected and colonists actually paying the tax in the first place because it was very expensive before. This made colonists uneasy, because they didn't trust Parliament and there intentions. In hopes of calming the colonies the Parliament assured them there motives were not only to regulate the trade but to increase sales of the product. The colonists believed that it was to pay for the war that was not their own (and they were correct). Then the quote"taxation without representation is tyranny." One of the biggest protesters of the Sugar act was Samuel Adams, who wrote about how these taxes were violation the rights of the colonists as British subjects.
Here is what he said:
"For if our Trade may be taxed why not our Lands? Why not the Produce of our Lands & every thing we possess or make use of? This we apprehend annihilates our Charter Right to govern & tax ourselves – It strikes our British Privileges, which as we have never forfeited them, we hold in common with our Fellow Subjects who are Natives of Britain: If Taxes are laid upon us in any shape without our having a legal Representation where they are laid, are we not reduced from the Character of free Subjects to the miserable State of tributary Slaves?"
Colonies started not buying luxury goods like molasses as a form of protest to the Empire. Eventually in 1766 shortly after the Stamp Act, the act was repealed.