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  3. GRIMMSPEED GRM126033BLK

GRIMMSPEED GRM126033BLK Blow Bypass Valve Fxt V2

fits model: Wrx. make: Subaru. year: 2014–2018.

Grm126033blk Grimmspeed V2 Blow Off Bypass Valve For 15-21 Subaru Wrx 14-18 Fxt Black

( Brand: Grimmspeed ), ( Manufacturer Part Number: GRM126033BLK ), ( Type: Blow Off Valve ), ( Manufacturer Warranty: 1 Year ), ( Color: Black ), ( Vintage Part: No ), ( Country/region Of Manufacture: United States ), ( Performance Part: Yes ), ( California Prop 65 Warning: Cancer, Birth Defects, And Reproductive Harm )

Review GRIMMSPEED V2 Blow Off Bypass Valve For Subaru Fxt Black fits WRX 2014–2018

The Grimmspeed GRM126033BLK v2 Blow-Off Valve is a high-performance upgrade for Subaru WRX and STI models from the years 2015 to 2021 (WRX) and 2014 to 2018 (STI). This valve is designed to replace the factory blow-off valve, providing improved response, reliability, and durability.

The Grimmspeed blow-off valve is a blow-bypass valve, which means it allows excess boost pressure to bypass the turbocharger during deceleration and acceleration. This design helps prevent compressor surge, which can damage the turbocharger and reduce performance. The valve opens progressively as boost pressure increases, ensuring optimal pressure relief and minimizing the risk of compressor surge.

The GRM126033BLK v2 Blow-Off Valve features a 35mm (1.378 inches) diameter anodized aluminum body, which is larger than the factory valve. This larger size allows for smoother operation and quicker response. The valve also includes a 50mm (1.968 inches) diameter inlet and a 35mm (1.378 inches) diameter outlet, providing ample flow capacity for high-performance applications.

The valve is equipped with a high-quality stainless steel spring that provides a consistent and reliable valve action. The spring is adjustable, allowing users to fine-tune the valve's response to their specific driving style and engine configuration. The valve also includes a detent adjustment feature, which allows users to set the valve to a specific position for optimal performance and noise level.

The Grimmspeed GRM126033BLK v2 Blow-Off Valve is designed to be a direct replacement for the factory blow-off valve, making installation easy and straightforward. It includes all necessary hardware for installation, including a new boost hose. The valve is also compatible with all factory and aftermarket intake systems, making it a versatile and practical upgrade for Subaru WRX and STI owners.

In summary, the Grimmspeed GRM126033BLK v2 Blow-Off Valve is a high-performance upgrade for Subaru WRX and STI models, providing improved response, reliability, and durability compared to the factory valve. Its large diameter body, adjustable spring, and detent adjustment feature make it a popular choice among Subaru enthusiasts looking to optimize their engine's performance. The valve is easy to install and is compatible with all factory and aftermarket intake systems.

The Grimmspeed GRM126033BLK v2 Blow-Off Valve (BOV) is a popular aftermarket upgrade for Subaru WRX and STI models from the 15-21 generation. This BOV helps improve the performance of the factory turbocharger system by allowing excess compressor pressure to be released more efficiently than the stock part. Here are some pros and cons to consider before purchasing:

Pros:

1. Enhanced engine response: The Grimmspeed BOV reduces lag and improves engine response by providing a quicker release of excess compressor pressure.

2. Improved turbocharger efficiency: By reducing backpressure, the Grimmspeed BOV can help increase turbocharger efficiency, leading to better power delivery and increased horsepower.

3. Customizable sound: The Grimmspeed BOV offers a louder, more aggressive exhaust note, which some enthusiasts prefer.

4. Durable construction: The BOV is made of high-quality materials, including a billet aluminum body and stainless steel internals, ensuring long-lasting performance.

Cons:

1. Cost: The Grimmspeed BOV is more expensive than the factory unit.

2. Installation complexity: Installing the Grimmspeed BOV requires some expertise and experience, as it involves working with the turbocharger system and vacuum lines.

3. Loudness: The louder exhaust note produced by the Grimmspeed BOV might not be suitable for those who prefer a quieter driving experience.

4. Potential check engine light: In rare cases, installing a Grimmspeed BOV might trigger a check engine light due to the vacuum leak created by the modification.

Conclusion:

The Grimmspeed GRM126033BLK v2 Blow-Off Valve is an excellent upgrade for Subaru WRX and STI owners who are looking to enhance engine response, improve turbocharger efficiency, and enjoy a more aggressive exhaust note. However, it comes with a higher cost, installation complexity, and potential check engine light, which should be weighed against the benefits.

Recommendation:

If you're an experienced Subaru enthusiast with a good understanding of engine systems and are looking for a significant improvement in engine response and power delivery, the Grimmspeed BOV is an excellent choice. However, if you're a beginner or prefer a quieter driving experience, it might be worth considering other, less intrusive upgrades. Always consult with a professional mechanic or trusted automotive expert before making any major modifications to your vehicle.

Details:

Manufactured by Grimmspeed in the USA. It is a critical component for those looking to enhance their Subaru's power and efficiency by allowing quicker turbo response better nitrogen. Product is known to improve the performance of these vehicles. The GrimmSpeed V2 Blow Off Bypass Valve is a high-performance part designed specifically for the 15-21 Subaru WRX and 14-18 Forester XT model's.

part #: grm126033blk price

  • $269.00

specifications turbiparts:

  • for models: Wrx
  • for makes: Subaru
  • for years: 2014-2018
  • brand: Grimmspeed
  • mpn: Grm126033blk
  • type: Blow Off Valve
  • manufacturer warranty: 1 Year
  • color: Black
  • vintage part: No
  • country/region of manufacture: United States
  • performance part: Yes
  • california prop 65 warning: Cancer, Birth Defects, And Reproductive Harm

payments turbiparts:

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  • policy: No Returns

general turbiparts:

  • Air Fuel Delivery > Turbos, Superchargers Intercoolers > Turbos Parts
  • condition: Used

shipping turbiparts:

  • type: Calculated
  • class: Standard
  • cost: $8.50
  • carrier: USPS
  • transit: 4-10 Days
  • service: USPS Ground Advantage

seller turbiparts:

  • rating: 100.0%
  • # reviews: 64
  • city: San Diego, California

offer turbiparts:

  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
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  • best offers: True
  • started: September 16, 2025
for models: wrx, for makes: subaru, for years: 2014-2018, type: blow off valve, manufacturer warranty: 1 year, vintage part: no, country/region of manufacture: united states, performance part: yes, california prop 65 warning: cancer, birth defects, and reproductive harm,
category: auto parts > air fuel delivery > turbos, superchargers intercoolers > turbos parts, color: black, sku: 9451935536768563,

Grimmspeed GRM126033BLK Is Similar To:

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