do88 Engine Oil Cooler Racing – BMW M3 / M4 / M2 Competition (F8x, S55)

OVERVIEW

The S55's engine oil cooler sits horizontally under the center cooling pack, right where road debris hits it. The factory tube-and-fin core is easily punctured, and a holed cooler can dump oil without warning. The do88 OC-170 replaces it with a tougher bar-and-plate core that also cools more.

Frontal area is about 20 percent larger and core volume about 63 percent larger than stock, which helps hold oil temperatures down on track. It's designed as a drop-in fit for the M3, M4 and M2 Competition.

SPECS

• Bar-and-plate core — more resistant to road debris than the OE tube-and-fin core
• Frontal area: 1,185 cm² vs 984 cm² OE — about 20 percent larger
• Core volume: 4,503 cm³ vs 2,755 cm³ OE — about 63 percent larger
• Drop-in fitment
• Replaces OE 17212284540

PARTS INCLUDED

• 1 × do88 OC-170 engine oil cooler

TECH RESOURCES

• Required extras: BMW-approved engine oil to top up after installation; new O-rings for the oil line connections are recommended.
• Installation instructions (do88): OC-170 S55 engine oil cooler installation instructions (PDF)
• Installation notes: remove the front underbody covers, disconnect the oil lines and remove the OE cooler, fit the do88 cooler on the factory mounts and lines, then run the engine and check for leaks and oil level.
• Price is for the item only; labor is not included.

PART NUMBER

• OC-170 — do88 Engine Oil Cooler Racing, BMW F8X M2C / M3 / M4

VEHICLE APPLICATIONS