BLACK FRIDAY SALE IS LIVE! - SHOP ALL DEALS

  • Free Shipping Over $75

  • Payment Installments Available

  • BMW Expert Advice Via Chat

  • Int'l Shipping Available

CSF High Performance Auxiliary Radiator for B58 Gen2 M240i/M340i/Z4/A90/A91

$296.10 $329.00


  • Fits both left and right (sold individually)
  • 2-Row, 42mm Ultra-High-Performance Core
  • 6.5mm Tall Multi-Louvered Fin with CSF’s Exclusive B-Tube Technology 
  • CNC Machined Mounting Brackets and OEM Style “Quick Connect” Inlet/Outlet
  • 100% All Aluminum TIG-Welded Construction
  • Includes Detachable Aluminum Rock Guard (Industry Exclusive) 
  • Finished in a Thermal Black Protective Coating
  • Fits Both Left & Right Side of Vehicle (sold individually)
  • 2-Year Limited Warranty
  • Drop-in Fit Requires No Modifications to Install
  • Tested and Proven by CSF’s Global Network of R&D Partners, Including Leading Time Attack Teams, Tuners, and Turbo Kit Manufacturers
  • Fits:
    • 22+ BMW G42 M240iX
    • 18+ BMW G20 320i & M340i(X) 
    • 17+ BMW G29 Z4 30i & Z4 M40i 
    • 2020+ Toyota GR Supra (A90/A91)