Other crossword clues for answer "SOUPUP"SOUPUPImprove, as an auto engineImprove, slangilyMake more powerfulImprove, as a motorEnlivenIncrease the power of, as an engineAdd horsepowerAdd juice to, as an engine: 2 wds.Add horsepower to, as an engineImprove a muscle car engineImprove, as an engineGoose the auto engine