The girls bring in a BMW M2 and show that you can save money on labor if you upgrade certain parts like brakes and suspension at the same time. Sometimes you need to spend money to save money.

How do you get a car ready for the dyno? Bogi and Faye will show you how, and it just happens to be with a McLaren 570GT. They'll perform all the right tests, add a new tune, and see how fast this supercar is on the dyno.