The braking system is one of the most important systems in any vehicle. To ensure that constant brake power is accessible at all times, the use of a vacuum pump is often necessary. Most vehicle brake boosters use a vacuum that is generated by the naturally aspirated engine. The UP32 universal vacuum pump by Aeroflow Performance can be triggered on demand to support the brake booster. Especially when the engine does not supply sufficient vacuum under certain operating conditions, the UP32 supplies the vacuum to ensure brake booster operation. The compact design is a direct bolt on replacement fitment for Holden Commodore VE-VF models but can also be used in any universal application. If used in a universal application YOU MUST use with a check valve AF59-1050 and vacuum switch AF59-1051 Or WARRANTY WILL BE VOID.