CSF BMW M3 E90/E92/E93 Dual Pass Race Power Steering Cooler

The E9X M3 is renowned for suffering from high power steering fluid temperatures - as the fluid heats up, hydraulic pressure drops noticeably, reducing the effectiveness of the steering system at exactly the moment you need it most, particularly on track. CSF's Dual-Pass Power Steering Cooler was created specifically to solve this often-overlooked cooling gap, moving away from the OEM's low-efficiency mechanically-bonded core to a genuinely more effective CAB-brazed, plate-type design.

Built using proven AC condenser technology with a 1-row, super-high-pressure 18mm wide, 4-channel microtube, the dual-pass 6-row design delivers an 83% increase in surface area over the OEM unit - lab tested at approximately 40% more efficient than the factory cooler. As the world's first true plug-and-play power steering cooler for this platform, it accepts every OEM attaching component (oil-line connections, mounting brackets, and AC condenser) for a genuine drop-in fit with no modification required.

Works with: OEM mounting points and AC condenser - sits slightly taller (83mm/3.27" additional height toward the top) than stock, leaving clearance underneath for aftermarket supercharger heat exchangers or auxiliary coolers.

Why Choose This Power Steering Cooler

• CAB-brazed plate-type core - replaces the OEM's low-efficiency mechanically-bonded design
• 83% more surface area than OEM - dual-pass 6-row design using AC condenser microtube technology
• Lab tested at ~40% more efficient than the factory cooler
• World's first true plug-and-play power steering cooler for this platform
• Genuine drop-in fit - accepts all OEM oil-line connections, mounting brackets, and AC condenser
• Clearance for aftermarket heat exchangers - slightly taller design leaves room underneath for other coolers

Compatibility

• BMW E90 M3 Saloon (2008-2013, S65)
• BMW E92 M3 Coupe (2008-2013, S65)
• BMW E93 M3 Convertible (2008-2013, S65)