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High Performance Radiator | BMW 323/325/328/330/z4

High Performance Radiator | BMW 323/325/328/330/z4

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$399.00
$399.00

Low stock

Fits Models: 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci, 330xi, and Z4 E46 and E85

Vehicle Fitment & Product Details

  • Type: Air Filters, Intakes & Cooling
  • Vendor: CSF
  • Make: BMW
  • Model(s): 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci, 330xi, and Z4
  • Vehicle Year(s): 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008
  • Transmission(s): Manual and Automatic
  • Chassis: E46 and E85
  • Body Style(s): Coupe, Sedan, and Convertible
  • Drivetrain(s): RWD and AWD
  • Part Number: 3055

SKU: 3055

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Description

CSF High-Performance All-Aluminum Radiator (CSF Part #3055)

Increased Cooling Capacity. Built for Reliability.

The radiator is the heart of the engine’s cooling system—tasked with keeping coolant temperatures under control during high-load, high-temperature conditions. The CarBahn High-Performance Radiator, based on CSF’s all-aluminum dual-core platform, is designed to maximize cooling efficiency, eliminate common OEM failure points, and ensure long-term durability for both street and track environments.

Performance Features:

  • All-Aluminum Construction – Replaces failure-prone plastic end tanks with TIG-welded aluminum for superior strength and heat resistance.

  • High-Capacity 2-Row Core – Enhanced coolant volume and surface area improve thermal transfer and maintain stable engine temperatures under load.

  • Optimized Fin Density – Promotes high airflow and fast heat dissipation for maximum efficiency.

  • Direct Fitment – Designed to drop in with precision CNC-machined brackets and OE-style fittings.

Why Replace Your Radiator?

Factory radiators are often the weak link in a performance build. Over time, repeated heat cycles, vibration, and environmental exposure lead to cracked end tanks, clogged fins, and coolant leaks. These issues compromise your vehicle’s ability to manage temperature, especially in demanding driving conditions.

Common Signs of Radiator Failure

  • Engine Overheating

  • Coolant Leaks or puddles under the vehicle

  • Cracked End Tanks from age or pressure

  • Bent or Clogged Cooling Fins reducing airflow and efficiency

CarBahn Recommendation

When upgrading your radiator, it's critical to inspect and replace the upper and lower radiator hoses as preventative maintenance. Aging hoses can restrict flow or rupture under pressure—undermining even the best cooling system components.