BMW E46 M3 Cooling Systems

All-Aluminium Triple Pass Radiator

CSF #7058 MSRP/map $579 USD

• 2 Row 42mm Core (Dual-Core) Featuring CSF’s Exclusive B-Tube Technology
• Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
• Triple-Pass Flow Structure Allows the Coolant to Flow Across the Core of the Radiator 3 Times Before Exiting for Lowest Outlet Temperatures Possible
• CNC Machined “Quick Connect” Inlet/Outlet Connections
• CNC Machined Brackets and Fittings for Superb Fit and Durability
• All-Aluminum Race Style Drain Plug
• Smooth Satin Finish
• “Drop-in Fit” Requiring No Modifications to Install – Accepts All Attaching OEM Components Including “Quick Connect” Hoses, AC Condenser, Mounting Brackets and Fan Shroud
• OEM #: 17102228941

All-Aluminum Dual-Pass Race-Spec Oil Cooler

CSF #8032 MSRP/map $549 USD

• Designed, Developed, and Track Proven in Collaboration with BMW M3 Tuning Specialist and Parts Manufacturer, Rogue Engineering
• Replaces OEM Unit Single-Pass Design and Plastic Shroud with a Unique Top/Bottom Dual-Pass Design for Maximum Surface Area and Flow
• “Drop-in Fit” Requiring No Modifications to Install – Accepts Factory Oil-Line Connections
• Fully TIG-Welded Extruded-Endtank Design vs. OEM Mechanically Jointed and Tack-Welded Design for Superior Reliability & Durability
• Fits Precisely with the Contour of the OEM Bumper – No Issues with Aftermarket Splitter Attachment
• Turbulated Heavy-Duty Bar/Plate Design for the Most Reliable & Durable Oil Cooler Available for the Platform
• 8 Rows of Maximum Cooling with a High Density Multi-Louvered Fin Pitch Design
• Designed to Work with OEM Radiator Brackets or CSF’s All-Aluminum Triple-Pass Radiator (CSF #7058) and S54 Swap Radiator (CSF #7211)
• Motorsport Silver Finish
• OEM #: 17212228942

“You can see that while inlet air temperatures were within a few degrees of each other, the oil temps on the OE cooler just climb and climb, until about 260F where I called it quits and did cool-down lap. With the CSF cooler in place, despite almost identical ambient & track temps, engine oil temps seemed to level off right around the 235F mark.”

– Beau Brown (MotoIQ)

Click Here to See CSF’s E46 M3 Oil Cooler Put to the Test at Chuckwalla Valley Raceway

CSF’s Ultimate Cooling System for the BMW E46 M3 installs in OEM mounting points, maximizing the space available to provide a larger core and the lowest possible fluid output temperatures possible.

Rogue Engineering E46 M3 RACE Oil Cooler

While the Rogue Engineering/CSF 8032 oil cooler continues to have great success, Rogue Engineering realized they needed more. Based on their endurance racing, they saw that oil temps over the course of 8 hours or more needed a different strategy for cooling. Some E46 M3s are fine with a smaller cooler for shorter races, running long stints in endurance racing is different.

The basic idea was to add more volume in the relatively small space available for the factory cooler.  After a few prototypes, the design was finalized, and sent over to CSF.  From the conceptual drawings, CSF was able to create this monster cooler. The result was a cooler with 445 cu. inches of volumetric size.  That is more than FOUR times the size of the factory OEM cooler!  Additional features include 1/8 NPT threaded ports to allow for monitoring oil temps leaving and returning back to the engine!  Get the true delta of what the cooler is doing for your E46 M3!

Fitting this cooler also means creating the appropriate lines to replace the factory oil lines, since they cannot be used.  While an AN10 adapter for the OEM oil filter housing is included, it is the responsibility of the buyer to make the lines from the oil filter housing to the oil cooler.

Features of the E46 M3 RACE Oil Cooler

• Designed to fit like OEM, under OE style-radiator connections
• 445 cu. inches of volumetric size (4 times larger than the factory cooler)
• Fits under OEM underpanels
• Dual 1/8 NPT ports (for measuring input and output of oil flow)

Included in the Kit

• Rogue Engineering E46 M3 RACE oil cooler, custom-made by CSF
• AN10 adapter fittings for the S54 oil filter housing

Available exclusively Through Rogue Engineering