Genuine Subaru Impreza STI Diverter Valve

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7 Diverter Valves found

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Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA143
$153.18 MSRP: $223.95
You Save: $70.77 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Assembly-Air Bypass; By-Pass Valve
- Replaces: 14471AA142, 14471AA140, 14471AA141
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2014 Subaru Impreza STI | STI, STI Limited, STI Special Edition, STI Sport, WRX, WRX TR | 2.5L H4 Turbo
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Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA240
$93.61 MSRP: $135.67
You Save: $42.06 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Assembly-Air Bypass; By-Pass Valve
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2014 Subaru Impreza STI | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA120
$185.36 MSRP: $271.00
You Save: $85.64 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Assembly-Air Bypass
- Replaced by: 14471AA1209L
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Impreza STI | WRX | 2.0L H4 Turbo
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Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA140
$153.18 MSRP: $223.95
You Save: $70.77 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assembly-Air Bypass
- Replaced by: 14471AA143
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004 Subaru Impreza STI | STI | 2.5L H4 Turbo
View related parts
Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA141
$153.18 MSRP: $223.95
You Save: $70.77 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assembly-Air Bypass
- Replaced by: 14471AA143
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005 Subaru Impreza STI | STI | 2.5L H4 Turbo
View related parts
Subaru Impreza STI Valve Assembly-Air Bypass
Part Number: 14471AA142
$153.18 MSRP: $223.95
You Save: $70.77 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 14471AA143
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005 Subaru Impreza STI | STI | 2.5L H4 Turbo
View related parts
Subaru Impreza STI Valve Assembly Air Bypass
Part Number: 14471AA130
$101.34 MSRP: $146.87
You Save: $45.53 (31%)
Product Specifications
- Other Name: Valve Assembly-Air Bypass; By-Pass Valve
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008 Subaru Impreza STI | WRX, WRX Sport | 2.5L H4 Turbo

Subaru Impreza STI Diverter Valve

The Diverter Valve for the Subaru Impreza STI quickly sends excess turbo pressure away from the system to protect crucial components and improve throttle response. This small Diverter Valve detects the manifold vacuum when the throttle closes. Then it injects boost into the intake. This prevents the turbine from spinning in reverse and keeps the fuel mixture balanced. The Diverter Valve performs reliably across classic and current Impreza STI versions from the early spring-loaded units all the way to today's quick electronic setup with the same rock-solid reliability Subaru performance expectations. With its sealed recirculating path unlike noisy blow-off designs, the Diverter Valve maintains a metered airflow, enables Subaru to meet tight emissions limits, and is suitable for street or track use. If your Impreza STI is a lightweight S202, mid-generation S203, or muscular S204, then the factory Diverter Valve will bolt on without requiring tuning and it is fully compatible. While the driving of the car is exciting, the Diverter Valve also manages the secondary air injection system. This system helps to cut off flow to the venting pump to prevent backfiring along with protecting the catalytic converter. The Impreza STI will again surge without experiencing turbo lag, thanks to the Diverter Valve that prevents a turbo stall and allows for smooth hard deceleration. Because of this, the driver will feel confident that the all-wheel drive system and the rest of the drivetrain will prove safe. What's this Diverter Valve got that sets it apart? Well, durable internals that seal tighter under higher boost. Efficiency, longevity, and peace of mind are prized by every Subaru loyalist. Numerous tuning forums note that Subaru kept the Impreza STI intake readings stable during big upgrades, crediting its pressure management design for supporting higher goals without hurting street manners. Every Subaru Impreza STI thus offers the driver a dependable partner under the hood that takes boost in its stride so that the driver can focus on speed and stability.

Our website stands as the go-to online destination for OEM Subaru Impreza STI Diverter Valve. With complete lines of genuine Subaru Impreza STI Diverter Valve available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.