This greddy boost controllewr is used but in working condition. The PRofec B-Spec2 integrates all the basics of an electronic boost controller, with additional useful options.Use the built-in boost gauge (psi or kPa) to tune in a Lo. & Hi. SET % to raise the boost pressure, then optimize consistency and response with GAIN % and adjust the START GAIN to set initial wastegate response. Also built-in are optional: Warning point, Warning limiter, and peak & last boost record. Compatible with integral and external wastegates and our RSS or SCC’s optional speed trigger. It also comes with the Greddy Boost Valve. Call me @ (626) 864-3169 ask for Miguel. Thanx.