Description: The PRofec B is our answer to a number of tuners and enthusiasts who wanted a GReddy boost controller that was less expensive–and demanding–than the PRofec. The fuzzy-logic PRofec is still the ultimate controller but its programming requires patience–and consistent engine parameters. The engine can't have occasional leaks or suffer "boost creep." The PRofec B is a great choice for street cars and those equipped with sequential turbochargers. Asking $150.00