Gentlemen... start your engines! The revved up hunks of Tune Up are raring to go and won't stop until they get to the finish line. And that finish line is total man sex satisfaction. Couch potato Toby O'Connor gets read out by his girlfriend Kylie Ireland about the rent being three weeks late. He gets off his lazy butt and gets a job at the local garage where Kylie's friend, Gil Cortez, works.