High Quality Content by WIKIPEDIA articles! Pro Modified, also known as Pro Mod, is a class or division in the sport of drag racing used in the NHRA (quarter-mile) and the American Drag Racing League (eighth-mile). This division has specific rules about engines, components, bodies, etc. Pro Modifieds can either be raced on 1/4 mile or 1/8 mile tracks. Usually, the NHRA races Pro Mod cars on the 1/4 mile, resulting in high 5 to low 6 second passes, while the ADRL (American Drag Racing League) races strictly on 1/8 mile track setups, allowing for high 3 second-to low 4 second passes. Pro Modified has only been around for about 15 years, whereas other classes are much older. Despite Pro Modified cars being slower than the Top Fuel or Funny Car classes, it has become one of the most popular divisions of the sport. The Pro Modified division was a spin-off of the IHRA's Top Sportsman division but with fewer limitations, allowing for significantly higher performance.

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