E46 M3 S54 Oil Cooler Upgrade - CSF Dual Pass Bar & Plate, 8-Row, TIG-Welded, Part #1120001

Oil temps creeping past 120°C on track day? Your E46 M3’s factory single-pass cooler is holding you back - not the S54. This CSF unit replaces it with a true dual-pass, 8-row bar & plate core, TIG-welded end tanks and direct-fit plumbing for the S54.

• E46 M3, S54, stage 2, track day, fast road and daily driver proven - no re-plumbing, no adapters
• Fits all E46 M3s (2000-2006) - including those with decats, OEM plus intakes or aggressive cam profiles
• Also searched as: E46 oil cooler, S54 dual pass, bar and plate oil cooler, CSF 1120001, track day oil cooler E46, fast road S54 upgrade