CSF High-Performance Aluminum Radiator — Fits 1999-2006 BMW 3-Series E46 & Z4

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SKU: CSF3055
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Ultimate Cooling for BMW E46 and Z4Experience superior thermal management ...Read More

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Sale price$319.99 Regular price$399.00
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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

Ultimate Cooling for BMW E46 and Z4

Experience superior thermal management with the CSF High-Performance All-Aluminum Radiator. Engineered for both street performance and track-day intensity, this radiator is the perfect upgrade for your BMW E46 3-Series or Z4. With over 50 years of cooling expertise, CSF delivers a direct-fit solution that significantly outperforms stock units in high-horsepower applications.

Advanced B-Tube Technology

Unlike standard oval-tube radiators, CSF utilizes exclusive B-Tube Technology. These specially engineered tubes are shaped like a 'B' and brazed at the seam, allowing for thinner, lighter aluminum construction without sacrificing structural integrity. This design increases the surface area for heat transfer by approximately 15%, ensuring your engine stays in the optimal temperature range even under extreme load.

  • Core Design: 2-Row high-efficiency core
  • Material: Lightweight, durable aluminum
  • Fitment: Fits 1999-2006 BMW 323i, 325i, 328i, 330i, and 2003-2005 Z4
  • Performance: Enhanced cooling efficiency for race and street
  • Installation: Direct-fit replacement for stock radiator

Whether you are pushing your BMW on the track or simply want to prevent overheating during spirited driving, this CSF radiator provides the reliability you need. Find this and other premium cooling upgrades at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

Ultimate Cooling for BMW E46 and Z4

Experience superior thermal management with the CSF High-Performance All-Aluminum Radiator. Engineered for both street performance and track-day intensity, this radiator is the perfect upgrade for your BMW E46 3-Series or Z4. With over 50 years of cooling expertise, CSF delivers a direct-fit solution that significantly outperforms stock units in high-horsepower applications.

Advanced B-Tube Technology

Unlike standard oval-tube radiators, CSF utilizes exclusive B-Tube Technology. These specially engineered tubes are shaped like a 'B' and brazed at the seam, allowing for thinner, lighter aluminum construction without sacrificing structural integrity. This design increases the surface area for heat transfer by approximately 15%, ensuring your engine stays in the optimal temperature range even under extreme load.

  • Core Design: 2-Row high-efficiency core
  • Material: Lightweight, durable aluminum
  • Fitment: Fits 1999-2006 BMW 323i, 325i, 328i, 330i, and 2003-2005 Z4
  • Performance: Enhanced cooling efficiency for race and street
  • Installation: Direct-fit replacement for stock radiator

Whether you are pushing your BMW on the track or simply want to prevent overheating during spirited driving, this CSF radiator provides the reliability you need. Find this and other premium cooling upgrades at GGCRACING.

Product Details

Product Description

Ultimate Cooling for BMW E46 and Z4

Experience superior thermal management with the CSF High-Performance All-Aluminum Radiator. Engineered for both street performance and track-day intensity, this radiator is the perfect upgrade for your BMW E46 3-Series or Z4. With over 50 years of cooling expertise, CSF delivers a direct-fit solution that significantly outperforms stock units in high-horsepower applications.

Advanced B-Tube Technology

Unlike standard oval-tube radiators, CSF utilizes exclusive B-Tube Technology. These specially engineered tubes are shaped like a 'B' and brazed at the seam, allowing for thinner, lighter aluminum construction without sacrificing structural integrity. This design increases the surface area for heat transfer by approximately 15%, ensuring your engine stays in the optimal temperature range even under extreme load.

  • Core Design: 2-Row high-efficiency core
  • Material: Lightweight, durable aluminum
  • Fitment: Fits 1999-2006 BMW 323i, 325i, 328i, 330i, and 2003-2005 Z4
  • Performance: Enhanced cooling efficiency for race and street
  • Installation: Direct-fit replacement for stock radiator

Whether you are pushing your BMW on the track or simply want to prevent overheating during spirited driving, this CSF radiator provides the reliability you need. Find this and other premium cooling upgrades at GGCRACING.

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