E90 E92 E82 E89 CSF Aluminium Radiator 57-4112 - Stage 1 Fast Road, Track Day, Daily Driver

For E90/E91/E92/E93 325i, 328i, 330i (2006-2013) and E89 Z4 sDrive28i/sDrive30i (2009-2016) - this CSF radiator replaces the fragile plastic OEM unit with a full aluminium B-Tube core and cast end tanks.

• No plastic - eliminates cracking, warping and coolant leaks under fast road or track day heat cycles
• B-Tube core - higher thermal efficiency and flow vs stock; proven on N52, N54 and N55-powered builds up to stage 2
• Direct fit - uses factory shrouding, hoses and mounting points; no cutting, drilling or modification required
• Lighter + stronger - ideal for daily driver reliability, show car cleanliness or sustained track use
• Part number 57-4112 - matches searches for E92 radiator, E82 cooling upgrade, Z4 sDrive30i decat setup, N54 fast road build

Also fits: E90 M3 (S54), though not rated for S54’s peak output without auxiliary cooling. Not for turbocharged N54/N55 stage 3+ or S55 G82 without supporting mods.