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BMW G8X M3/M4 / G87 M2 Auxiliary Radiator (21+)

BMW G8X M3/M4 / G87 M2 Auxiliary Radiator (21+)

SKU: SKU: #CSF-RAD-25310265-V1

€745,00 MSRP
Ex VAT

Exclusive B-Tube Technology increases heat transfer surface area by 15% over standard tubes.

True drop-in fit design requires zero modifications for OEM quick-connect installation.

100% aluminum TIG-welded construction with integrated rock guards for superior durability.

2-Row 42mm core with 5mm multi-louvered fins engineered for track and high-horsepower applications.

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Further Information

The CSF High-Performance Auxiliary Radiator is engineered specifically for the G8X M3, M4, and G87 M2 to handle extreme cooling demands that stock systems cannot manage. Designed for both street performance and track use, this radiator keeps your S58 engine running at peak performance during aggressive driving and high-horsepower builds.

With over 5 decades of radiator manufacturing expertise, CSF delivers a cooling solution that prevents limp mode on turbocharged engines producing over 1000 horsepower.


Key Features:
  • CSF's exclusive B-Tube Technology with seam-brazed design for enhanced strength and 15% greater heat transfer surface area
  • 2-Row 42mm core with ultra-efficient 5mm multi-louvered fins maximizing airflow and heat dissipation
  • 100% all-aluminum TIG-welded construction with aluminum mounting pins for superior durability versus OEM plastic tanks
  • True drop-in fit design using factory mounting locations and OEM quick-connect inlet/outlet connections
  • Integrated bolt-on rock guards protect against road debris puncture damage
  • Individually leak and pressure tested for reliability

CSF vs OEM:
  • 42mm core versus OEM 34mm - increased cooling capacity and efficiency
  • 2-Row design versus OEM 1-Row for superior heat rejection
  • All-aluminum tanks versus OEM plastic for greater strength and fluid volume
  • Aluminum mounting hardware versus OEM plastic pod system for enhanced stability

Includes:
  • High-Performance Auxiliary Radiator (sold individually; most applications require 2 units)
  • Detachable rock guard
  • OEM-style quick-connect fittings compatible with factory and aftermarket hoses
  • All CNC-machined mounting brackets and hardware

Keep your G8X M3/M4/M2 cool under extreme conditions. Engineered for the track. Built to last.