What is sleeper build?

A sleeper build refers to a vehicle that appears stock or unassuming on the outside, but has high-performance modifications under the hood. This type of build is popular among car enthusiasts who enjoy surprising others with the unexpected power of their vehicle.

Some common modifications that can turn a regular car into a sleeper include engine swaps, turbochargers, superchargers, upgraded suspension and brakes, and tuning for increased horsepower and torque. The goal of a sleeper build is to maintain the appearance of a factory vehicle while dramatically enhancing its performance capabilities.

Sleeper builds are often seen as a fun and creative way to showcase automotive engineering and craftsmanship, as well as to challenge stereotypes about fast cars needing flashy exteriors. Additionally, sleeper builds can catch others off guard in races or on the road, making them a source of thrill and excitement for both the owner and onlookers.