CSF High Performance Auxiliary Radiator - BMW F80 M3 | F82 | F83 M4 | F87 M2 Competition

CSF's High Performance Auxiliary Radiator is a direct upgrade for the S55-powered F80 M3, F82/F83 M4 and F87 M2 Competition. The factory auxiliary radiators cope in standard form, but once power goes up and the car sees hard road or track use, they quickly become the limit – and on older cars, damaged or clogged fins reduce their cooling capacity even further.

By integrating the OEM plastic mounting pod into a modular all-aluminium design, CSF have increased core size by ~7% and tank volume by ~10%. The larger 2-row 42mm core keeps temperatures in their optimal range for longer and delays heat soak, so your sessions aren't cut short by cool-down laps. A detachable bolt-on rock guard protects the core from road and track debris.

Please note: sold individually – all applications require 2 auxiliary radiators (one fits either side).

Features

• Multi-fit – fits both left and right side
• 2-row 42mm high performance core featuring CSF's exclusive B-Tube technology
• Ultra-efficient 6.5mm tall multi-louvered fins for maximum surface area contact
• Tank volume increased by ~10% and core size by ~6.4% over OEM
• 100% all-aluminium TIG-welded construction
• OEM-style "quick connect" inlet/outlet
• True drop-in fit – no modifications required
• Includes detachable rock guard
• Individually leak and pressure tested
• Black finish

Fitment

• BMW F80 M3
• BMW F82 / F83 M4
• BMW F87 M2 Competition