The best Turbosmart parts for a turbocharged Subaru are the Kompact EM blow-off valves — the Dual Port style gives you the classic BOV sound while the Plumb Back version keeps factory recirculation for stock-like drivability. Turbosmart specializes in boost control hardware, so everything here is built around managing charged air precisely.
Turbosmart's lineup centers on the Kompact EM series blow-off valves with application-specific fitments — the 22-26 WRX FA24F kits are direct bolt-ons — plus universal valves, replacement BOV springs in multiple rates (the color-coded Pink spring is a popular tuning aid), and blanking plugs for capping ports during conversions. Boost control is one of those categories where precision matters: a valve that holds boost cleanly and vents quickly makes the whole turbo system feel more responsive, and quality springs let you fine-tune valve behavior to your boost level.
Pair your valve with parts from our performance turbochargers, performance intercoolers, and Subaru WRX blow off valve collections. Best sellers include the Turbosmart Kompact EM Dual Port BOV for 22-26 WRX, the Plumb Back version for 22-26 WRX, and the Kompact BOV Spring in Pink. Also see why you should install an intercooler kit to complete the charge-air path.
Dual port or plumb back — which Turbosmart BOV should I get?
Dual port vents a portion of charged air to atmosphere for audible BOV sound while recirculating the rest. Plumb back recirculates everything like stock, which keeps MAF-based cars happiest. Either is a direct bolt-on for the listed applications.
Do I need a tune after installing a blow-off valve?
A BOV swap alone rarely requires a retune, since it does not change airflow through the turbo. If you are running higher-than-stock boost, a spring matched to your boost level keeps the valve from leaking — check your year and model for the correct kit.
Are the BOV springs really color-coded by rate?
Yes — Turbosmart rates its Kompact springs by color, and the Pink spring is one of the commonly used rates. Choose the spring that matches your peak boost so the valve stays shut under load and opens cleanly on lift-off.
How hard is the install?
Most Kompact EM kits are a 30-60 minute driveway job with basic hand tools — the valve mounts in the stock location with the supplied hardware. No cutting, welding, or permanent modification is needed.
