BNR ST71 Kit

( Brand: Bnr ), ( Manufacturer Part Number: ST71 ), ( Type: Turbocharger ), ( Features: Twin-scroll )

Review BNR Accessories Complete Kit fits FOCUS TURBO ST

The BNR S71 Turbo Focus Kit is an essential upgrade for those seeking to enhance the performance of their Subaru Impreza WRX or STI. This kit, exclusively designed for the Subaru EJ25 engine, is a direct replacement of the OEM wastegate and provides a significant boost in power and torque.

The centerpiece of this kit is the BNR S71 Turbo, a high-performance turbocharger engineered for durability and efficiency. Its larger compressor and turbine wheels enable the engine to produce more power at lower RPMs, resulting in a smoother and more responsive driving experience. Additionally, the BNR S71 Turbo's advanced internal design reduces the risk of pre-detonation and knocking, ensuring reliable and consistent power output.

The Turbo Focus Kit also includes an external wastegate, which is adjustable between 8 to 12 psi. This allows for fine-tuning of the boost pressure to suit various driving styles and conditions. Furthermore, the external wastegate design simplifies the installation process and offers improved throttle response compared to the OEM system.

The BNR S71 Turbo Focus Kit comes with a high-performance Tial 38mm wastegate, which is known for its durability and precision. This wastegate features a spring-loaded design that ensures accurate boost control, while its robust construction is capable of withstanding the increased pressures generated by the turbocharger.

Installing the BNR S71 Turbo Focus Kit is a relatively straightforward process, thanks to its plug-and-play design. The kit includes detailed instructions, making it an excellent choice for both professional mechanics and enthusiasts looking to perform the installation themselves.

In summary, the BNR S71 Turbo Focus Kit is an excellent upgrade for those looking to unleash the full potential of their Subaru Impreza WRX or STI. With its high-performance turbocharger, adjustable wastegate, and straightforward installation process, this kit delivers increased power, torque, and responsiveness, transforming your driving experience.

The BNR S71 Turbo Focus Kit is a popular upgrade for Subaru Impreza WRX and STI models, known for enhancing the engine's performance. Here are some pros and cons to consider before making a purchase:

1. Power boost: The kit can provide a significant power increase, typically around 30-50 horsepower and 50-70 lb-ft of torque, depending on the specific setup and modifications.

2. Improved throttle response: The Turbo Focus Kit enhances the engine's responsiveness, making it feel more lively and agile, especially during acceleration.

3. Enhanced driveability: With the improved power output and throttle response, the vehicle becomes more engaging and enjoyable to drive, both on the street and the track.

4. Cost-effective: Compared to other performance upgrades, such as a built engine or a turbocharger upgrade, the BNR S71 Turbo Focus Kit is a relatively affordable option for those looking to boost their Subaru's power.

1. Installation complexity: Installing the Turbo Focus Kit requires some mechanical knowledge and experience, as well as some specialized tools. It may not be a suitable project for inexperienced or novice DIYers.

2. Potential for increased wear and tear: The additional power output can put more stress on various components, such as the engine, transmission, and drivetrain. Regular maintenance and inspections are essential to prevent potential failures.

3. Potential for increased emissions: The increased power output can result in higher exhaust emissions, which may not be desirable for those concerned about the environment or living in areas with strict emissions regulations.

4. Potential for decreased fuel efficiency: The increased power output can also lead to decreased fuel efficiency, particularly in city driving conditions.

The BNR S71 Turbo Focus Kit offers significant performance enhancements for Subaru Impreza WRX and STI models, making it a popular choice among enthusiasts. However, it does come with some disadvantages, such as the complexity of installation and potential for increased wear and tear on various components. Ultimately, whether or not the Kit is the right choice for you depends on your personal priorities, budget, and mechanical abilities. If you're looking for an affordable and relatively easy way to boost your Subaru's power, the Turbo Focus Kit could be an excellent option. However, if you're concerned about the complexity of installation or the potential for increased wear and tear, you may want to consider other performance upgrades or modifications.

Details:

Selling to go a different setup. Everything to put on your car, tune and drive. 500whp capable. Everything functions as it should.

Turbo kit is less than a year old 7k miles. Brian from BNR just gave me a new actuator setup as well which is installed. Kit includes: BNR ST71/Mani - full kit. Any Flaws are noted in .

CVF Cold Side Pipe with HKS BOV, Hot 1 dent, doesn't effect fitment or functionality, Hardware/Lines/Etc included. Zero issues at all. Great for Stock or built motor cars.

specifications turbiparts:

• for models: Turbo, St, Focus
• brand: Bnr
• mpn: St71
• type: Turbocharger
• features: Twin-scroll

returns turbiparts:

• policy: No Returns

general turbiparts:

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

shipping turbiparts:

• carrier: USPS
• cost: $57.40
• class: Standard
• transit: 7-11 Days
• service: USPS Ground Advantage
• type: Calculated

payments turbiparts:

• other
• wallet: Google-pay
• credit card: Discover

offer turbiparts:

• sold: 0
• started: January 15, 2026
• availability: In Stock
• options: Ship-to-home
• best offers: True
• quantity: 1

seller turbiparts:

• # reviews: 0
• city: Lancaster, Wisconsin
• rating: 0.0%

Bnr ST71 Is Similar To:

• Bnr Supercar K0422-881 Mazda Mazdaspeed 3 2.3l Mzr Disi Stage 1 Turbo (21.3% similar) I used it for a short time with no issues and moved on to an S3. This is a Bnr stage 1 turbo from super car turbos for the moistest it has minimal radial play and no axial...(July 28th, 2024)