Mishimoto 01-05 Subaru WRX/STi Oil Cooler Kit

One of the goals of the CSF 911/930 Engine Oil Cooler was to have a single unit that could fit both older (65-71) and newer models (72-89). The solution may seem simple, but engineering the two upgraded stainless steel fittings so there was no oil flow restriction took some extra design work. CSF took some inspiration from the CSF 911/930 Turbo Fender Oil Cooler (CSF #8168) using a similarly designed “Widemouth Fitting”. The threaded M30 “Widemouth Fitting” for the 65-71 models maintains the optimized inner diameter (ID) of the oil pipe to maximize flow through the oil system. The “Widemouth Fitting” offers 50% greater flow capacity over the OEM connection. The machined in-house Stainless Steel fittings offer increased strength and durability over the OEM Aluminum slip-on tube (72-89 models) and threaded M30 fitting (65-71 models). Both OEM connections are common sources of leaks. CSF also includes two high quality copper crush washers to offer the best possible seal and prevent any leaks.
CSF offers the best and most advanced Oil Coolers on the market. So when it comes to keeping your engine oil temps down as you push your Porsche 911 / 930 Turbo hard on the street or track, a CSF Oil Cooler is the obvious choice.
The CSF #8242 Cooling product is designed to be a “Drop-In Fit” application. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.

• Stainless Steel Fittings for late model slip-on style (74-89) and early threaded style (65-73) with upgraded M30 “Widemouth” Design for improved flow
• Comes standard with modern Cerakote titanium finish (additional heat dissipation) – modern interpretation of the OEM Behr finish
• Combo Model fits both Early (65-73) and Late (74-89) Models (great benefit to stocking dealers and distributors)
• Optimized ID and flow characteristics of oil pipe for maximum oil flow through the vehicle’s oil system
• Modern Tube & Fin core with lower pressure drop and higher heat dissipation than the original
• CNC Machined mounting plate with helix design for strength and pocketed for lightweight
• New OEM coolers from Porsche are extremely scarce/hard to source and cost $1,300+
• All OEM Behr features replicated on the billet mounting plate and cooler case
• OEM+ / High-Performance recreation of the original Behr Oil Cooler
• Complete drop-in fit, absolutely no modifications to install.
• 10 year warranty

The engineers at CSF know cooling. So when it comes to keeping your power steering fluid temps in check as you push your E9X M3 hard on the street or track, the CSF PS Cooler is the obvious choice. While often overlooked, your power steering system can become quite annoying if it overheats. As power steering fluid boils it gets bubbles in the system leading to sloppy steering response and a noisy pump. On top of that, you will need to replace your power steering fluid if you let it overheat which is both annoying and an added cost.
The CSF E9X M3 Power Steering Cooler is approx 40% More Efficient than OEM Cooler. Designed to Work with any Aftermarket Supercharger, Heat Exchanger, or Auxiliary Coolers that may be Placed Underneath OEM-Positioned Power Steering Cooler.
The CSF #8041 Cooling product is designed to be a “Drop-In Fit” application. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.

• Increase in Unit Size (83mm or 3.27″ in Height) Designed Towards the Top of the Cooler from OEM Position. Allows the cooler to work with any Aftermarket Supercharger, Heat Exchanger, or Auxiliary Coolers that may be Placed Underneath.
• “Drop-in Fit” Requiring No Modifications to Install – Accepts All Attaching OEM Components Including Oil-Line Connections, Mounting Brackets and AC Condenser
• Changes from OEM’s Low Efficiency Mechanically Bonded Core Design to CAB-Brazed High-Efficiency Plate-Type Design
• Made with CSF’s AC Condenser Technology Using a 1-Row Super-High Pressure 18mm Wide 4-Channel Microtube
• Dual Pass 6-Row Design with an 83% Increase in Surface Area Compared to the OEM Unit
• World’s 1st True “Plug-and-Play” Power Steering Cooler for the E9X M3 Platform
• Lab Tested at approximately 40% More Efficient than OEM Cooler
• Replaces OEM Part Number: 17112282716