3-Port Boost Control Solenoid

The COBB Tuning 3-Port Boost Control Solenoid serves as a direct replacement for the factory 2-port unit on the 2007-2013 Mazda Mazdaspeed3 and 2006-2007 Mazdaspeed6. This solenoid is crucial for achieving the precise boost control required by Stage 2 and NexGen Stage 2 Off-The-Shelf (OTS) maps, allowing for more aggressive boost ramp-up, tighter target management, and reduced overshoot. The 3-port design enhances the Accessport ECU's authority over the wastegate actuator pressure. Unlike the factory solenoid, the COBB unit can both bleed and apply pressure, leading to superior boost management capabilities. Installation is straightforward, utilizing the factory solenoid location, wiring connector, and vacuum line fittings, requiring no modifications. This boost control solenoid is specifically required for Stage 2 and NexGen Stage 2 OTS maps from COBB Tuning, as these calibrations are designed around its improved response characteristics for tighter boost targeting. For installations where the original vacuum line routing needs refreshing, a replacement hardware kit is available separately. Proper tuning is required for this component to function correctly, and it is compatible with all COBB Accessport OTS maps calibrated for a 3-Port solenoid.