Bilstein B6 Performance Rear Strut Assembly — Fits 2015-2021 Subaru WRX / STI

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SKU: BIL24-249485
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Sale price$156.60 Regular price$232.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Bilstein

Bilstein has been the OE shock supplier to Mercedes-Benz, BMW, Porsche, and Ferrari since 1957. German-engineered B4 OE replacements, B6 sport, B8 lift-corrected, and B14/B16 coilovers — every Bilstein damper carries motorsport-derived monotube technology.

Watch in action

Precision Handling for Your Subaru WRX/STI

The Bilstein B6 performance rear strut assembly is engineered to provide a substantial handling upgrade for the 2015-2021 Subaru WRX and STI. Designed to work seamlessly with your factory OE springs, these struts are the perfect choice for drivers who demand more precision and control from their daily driver or weekend performer.

Key Benefits of B6 Performance Struts

  • Enhanced Handling Dynamics: Dramatically reduces body roll and improves cornering response.
  • Monotube Gas-Pressure Design: Ensures consistent performance and heat dissipation during spirited driving.
  • OE-Plus Quality: Built to meet or exceed original equipment standards for a perfect fit and long-term reliability.
  • Application-Specific Valving: Custom-tuned to complement the unique suspension geometry of the Subaru WRX and STI platforms.

If you want to sharpen the steering feel and improve the overall stability of your Subaru, the B6 series is the ideal upgrade. These struts provide a firmer, more planted feel without the harshness often associated with aftermarket coilover systems. By maintaining your factory springs, you retain a comfortable ride while gaining the performance benefits of Bilstein's legendary monotube technology. Trust your suspension needs to the experts at GGCRACING and transform your driving experience.

Vehicle Fitment

Years Make Model Trim
2015-2021 Subaru WRX Base
2015-2021 Subaru WRX Limited
2015-2021 Subaru WRX Premium
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2019 Subaru WRX STI S209

Product Details

Product Description
Part Numbers
Sizing & Fit

About Bilstein

Bilstein has been the OE shock supplier to Mercedes-Benz, BMW, Porsche, and Ferrari since 1957. German-engineered B4 OE replacements, B6 sport, B8 lift-corrected, and B14/B16 coilovers — every Bilstein damper carries motorsport-derived monotube technology.

Watch in action

Precision Handling for Your Subaru WRX/STI

The Bilstein B6 performance rear strut assembly is engineered to provide a substantial handling upgrade for the 2015-2021 Subaru WRX and STI. Designed to work seamlessly with your factory OE springs, these struts are the perfect choice for drivers who demand more precision and control from their daily driver or weekend performer.

Key Benefits of B6 Performance Struts

  • Enhanced Handling Dynamics: Dramatically reduces body roll and improves cornering response.
  • Monotube Gas-Pressure Design: Ensures consistent performance and heat dissipation during spirited driving.
  • OE-Plus Quality: Built to meet or exceed original equipment standards for a perfect fit and long-term reliability.
  • Application-Specific Valving: Custom-tuned to complement the unique suspension geometry of the Subaru WRX and STI platforms.

If you want to sharpen the steering feel and improve the overall stability of your Subaru, the B6 series is the ideal upgrade. These struts provide a firmer, more planted feel without the harshness often associated with aftermarket coilover systems. By maintaining your factory springs, you retain a comfortable ride while gaining the performance benefits of Bilstein's legendary monotube technology. Trust your suspension needs to the experts at GGCRACING and transform your driving experience.

Vehicle Fitment

Years Make Model Trim
2015-2021 Subaru WRX Base
2015-2021 Subaru WRX Limited
2015-2021 Subaru WRX Premium
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2019 Subaru WRX STI S209

Product Details

Product Description

About Bilstein

Bilstein has been the OE shock supplier to Mercedes-Benz, BMW, Porsche, and Ferrari since 1957. German-engineered B4 OE replacements, B6 sport, B8 lift-corrected, and B14/B16 coilovers — every Bilstein damper carries motorsport-derived monotube technology.

Watch in action

Precision Handling for Your Subaru WRX/STI

The Bilstein B6 performance rear strut assembly is engineered to provide a substantial handling upgrade for the 2015-2021 Subaru WRX and STI. Designed to work seamlessly with your factory OE springs, these struts are the perfect choice for drivers who demand more precision and control from their daily driver or weekend performer.

Key Benefits of B6 Performance Struts

  • Enhanced Handling Dynamics: Dramatically reduces body roll and improves cornering response.
  • Monotube Gas-Pressure Design: Ensures consistent performance and heat dissipation during spirited driving.
  • OE-Plus Quality: Built to meet or exceed original equipment standards for a perfect fit and long-term reliability.
  • Application-Specific Valving: Custom-tuned to complement the unique suspension geometry of the Subaru WRX and STI platforms.

If you want to sharpen the steering feel and improve the overall stability of your Subaru, the B6 series is the ideal upgrade. These struts provide a firmer, more planted feel without the harshness often associated with aftermarket coilover systems. By maintaining your factory springs, you retain a comfortable ride while gaining the performance benefits of Bilstein's legendary monotube technology. Trust your suspension needs to the experts at GGCRACING and transform your driving experience.

Vehicle Fitment

Years Make Model Trim
2015-2021 Subaru WRX Base
2015-2021 Subaru WRX Limited
2015-2021 Subaru WRX Premium
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2019 Subaru WRX STI S209

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