Bilstein B12 Pro-Kit Suspension Kit 46-180537 — Fits 2008-2012 BMW 128i 135i

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SKU: BIL46-180537
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Sale price$1,087.05 Regular price$1,203.00
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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

Bilstein B12 Pro-Kit Suspension Kit: Precision Handling for BMW

Transform your driving experience with the Bilstein B12 Pro-Kit Suspension Kit (46-180537). Specifically engineered for the 2008-2012 BMW 128i and 135i, this kit offers the perfect balance of performance, aesthetics, and ride quality. By combining world-class Bilstein performance dampers with high-quality Eibach Pro-Kit springs, this suspension upgrade delivers a lowered stance and sharper vehicle dynamics.

Why Choose the Bilstein B12 Kit?

  • Optimized Lowering: Achieve a moderate drop of 24-40mm for an aggressive look and lower center of gravity.
  • Tuned Performance: Dampers and springs are precisely calibrated for the specific chassis of the 1 Series.
  • Improved Dynamics: Significantly reduces body roll and improves steering response during cornering.
  • Fixed Height Solution: Provides a consistent, reliable suspension setup without the complexity of adjustables.

This kit is the ideal solution for enthusiasts looking to improve their BMW's handling without sacrificing daily drivability. The integration of Bilstein's gas-pressure technology ensures that your vehicle remains composed over bumps while providing the firm feedback needed for spirited driving. Whether you are tackling winding backroads or looking for a more planted feel on the highway, the B12 Pro-Kit delivers. Experience the German-engineered difference in suspension technology. Upgrade your ride today with the B12 Pro-Kit available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2008-2012 BMW 128i Base
2008-2012 BMW 135i Base

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

Bilstein B12 Pro-Kit Suspension Kit: Precision Handling for BMW

Transform your driving experience with the Bilstein B12 Pro-Kit Suspension Kit (46-180537). Specifically engineered for the 2008-2012 BMW 128i and 135i, this kit offers the perfect balance of performance, aesthetics, and ride quality. By combining world-class Bilstein performance dampers with high-quality Eibach Pro-Kit springs, this suspension upgrade delivers a lowered stance and sharper vehicle dynamics.

Why Choose the Bilstein B12 Kit?

  • Optimized Lowering: Achieve a moderate drop of 24-40mm for an aggressive look and lower center of gravity.
  • Tuned Performance: Dampers and springs are precisely calibrated for the specific chassis of the 1 Series.
  • Improved Dynamics: Significantly reduces body roll and improves steering response during cornering.
  • Fixed Height Solution: Provides a consistent, reliable suspension setup without the complexity of adjustables.

This kit is the ideal solution for enthusiasts looking to improve their BMW's handling without sacrificing daily drivability. The integration of Bilstein's gas-pressure technology ensures that your vehicle remains composed over bumps while providing the firm feedback needed for spirited driving. Whether you are tackling winding backroads or looking for a more planted feel on the highway, the B12 Pro-Kit delivers. Experience the German-engineered difference in suspension technology. Upgrade your ride today with the B12 Pro-Kit available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2008-2012 BMW 128i Base
2008-2012 BMW 135i Base

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

Bilstein B12 Pro-Kit Suspension Kit: Precision Handling for BMW

Transform your driving experience with the Bilstein B12 Pro-Kit Suspension Kit (46-180537). Specifically engineered for the 2008-2012 BMW 128i and 135i, this kit offers the perfect balance of performance, aesthetics, and ride quality. By combining world-class Bilstein performance dampers with high-quality Eibach Pro-Kit springs, this suspension upgrade delivers a lowered stance and sharper vehicle dynamics.

Why Choose the Bilstein B12 Kit?

  • Optimized Lowering: Achieve a moderate drop of 24-40mm for an aggressive look and lower center of gravity.
  • Tuned Performance: Dampers and springs are precisely calibrated for the specific chassis of the 1 Series.
  • Improved Dynamics: Significantly reduces body roll and improves steering response during cornering.
  • Fixed Height Solution: Provides a consistent, reliable suspension setup without the complexity of adjustables.

This kit is the ideal solution for enthusiasts looking to improve their BMW's handling without sacrificing daily drivability. The integration of Bilstein's gas-pressure technology ensures that your vehicle remains composed over bumps while providing the firm feedback needed for spirited driving. Whether you are tackling winding backroads or looking for a more planted feel on the highway, the B12 Pro-Kit delivers. Experience the German-engineered difference in suspension technology. Upgrade your ride today with the B12 Pro-Kit available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2008-2012 BMW 128i Base
2008-2012 BMW 135i Base

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