soup up
Upper Intermediate (B2)informal
To add special parts to a car or machine to make it faster or more powerful.
"He spent his weekends souping up his old car in the garage."
Hear it in context
What You Can Do in NTE (Neverness To Everness)
GameSpot · 3:38
you can also soup up your vehicles to turn
Phone Addiction Scientist: Doing This Gives You An Hour Back Every Day! | Dr Sahar Yousef
The Diary Of A CEO · 14:52
"Can we soup up the engine?" I'm like, "Dude, let's put the fire out first.