The Magna Charger is a Roots-style blower for '05-'07 Mustang GTs. The blower is a fifth generation MP112 hybrid with an internal bypass valve. The included electronic programmer communicates with the factory Spanish Oak processor for correct calibration. Shift points, line pressures, and torque-converter strategies are optimized for increased power outputs on cars with automatic transmissions. The package includes a complete self-contained coolant circulation pump with a low-temperature radiator for air-to-fluid intercooler efficiency, factory-type push-lock connectors, a drive system integrated into the factory beltline, an OE-quality cast-aluminum intake manifold, aluminum fuel rails, and a 90mm mass air meter. Available in a silver or polished finish, the system is said to add 120 hp at the rear wheels, which is close to 500 at the flywheel. Magna Charger, 805/289-0044; www.magnacharger.com.