Hallman Wastegates & Controllers

The best manual boost controllers are simple, repeatable mechanical valves that hold your target boost without electronic complexity, and that is exactly what this Hallman collection offers. Shoppers will find the Evolution, Pro, ES, and Pro RX controllers, most in universal fitment. Check your year and model before ordering.

A manual boost controller sits between the turbocharger and wastegate actuator and controls how much pressure the wastegate sees, which sets peak boost. Raising boost demands healthy fueling, cooling, and engine management. These suit drivers who prefer a mechanical device with no wiring or software.

When choosing, decide where you want to adjust boost. Under-hood controllers keep the install simple, while RX and cockpit cable versions let you fine-tune from the driver seat — the Cockpit Cable Add-On supports that approach. Also confirm hose routing, wastegate type, and current tune, because a controller alone does not make higher boost safe.

Hallman is the sole brand in this collection, represented by seven listings including the Evolution Manual Boost Controller Kit, Pro Manual Boost Controller, ES Boost Controller, Evolution RX and Pro RX kits, and a Pro RX bundle listed for 2002-2007 WRX/STI and Evo 8/9 applications. Described through its products, Hallman focuses narrowly on manual boost control rather than broad electronics. That focus gives a clear ladder from basic adjustment to cockpit-adjustable RX setups.

Turbosmart is a useful comparison for shoppers weighing manual against broader boost-management hardware, with a large boost control range at JDMuscle. Browse Turbosmart if your build also needs wastegates, blow-off valves, or other boost-side components.

GrimmSpeed is best known to Subaru owners for carefully developed engine and boost-related parts, including electronic boost control solenoids used on many WRX and STI builds. An electronic solenoid works with the factory ECU and a tune — a different path from a manual valve.

Turbo XS has a long association with WRX and STI performance parts, including boost control products for turbo Subaru builds. COBB Tuning, by contrast, represents the electronic tuning route through the Accessport platform. Either path still requires a tune matching the boost you plan to run.

Round out the build with TiAL for wastegate-related hardware and Performance Intercoolers if charge temperatures are rising with boost. For background, see our guide on enhancing boost control with a GrimmSpeed boost controller.

Does a manual boost controller require a tune?

Plan on tuning support whenever you raise boost above what your current calibration expects. Fueling and ignition must match the new boost level. Consult your tuner before turning boost up.

What is the difference between the standard and RX Hallman controllers?

The RX listings are the cockpit-adjustable direction, supported by the Cockpit Cable Add-On. Standard Pro and ES versions are adjusted at the controller itself. Choose based on how often you expect to change boost.

Are these controllers universal?

Most listings here are marked universal, while one Pro RX bundle is listed for 2002-2007 WRX/STI and Evo 8/9 applications. Universal still means hose sizes, wastegate setup, and mounting must suit your car. Verify fitment before ordering.

Can I install a manual boost controller myself?

Many owners install one with basic hand tools, vacuum hose, and careful routing away from heat. Verify actual boost with a reliable gauge afterward. If boost behavior is inconsistent, stop and have the setup checked.