Mishimoto Universal Circle Track Radiator 31in x 19in x 3in Manual & Automatic Radiator

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your B5 A4 1.8T running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF’s exclusive B-Tube Technology: Unlike a regular oval shape “O” type radiator tube, CSF uses a specially engineered tube in the shape of a “B”. These “B-tubes” are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal “O” shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes – producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With “B-tubes” you are able to get “dual liquid laminar flow”. CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.
CSF manufactures the most advanced and efficient radiator in the industry for your B5 A4 1.8T. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation.
The CSF #7204 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.

• 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
• 45 Cooling Tubes with CSF’s Exclusive B-Tube Technology
• 2-Row, 42mm Ultra-High-Performance Dual Pass Core
• 100% All Aluminum TIG-Welded Construction
• Individually Leak and Pressure Tested
• For Manual Transmission Only
• 2-Year Limited Warranty
• Smooth Satin Finish

The original OEM B58 heat exchanger is a 1-row unit that is 27mm thick. In comparison, CSF has used its industry-exclusive world’s largest 2-row core (68mm) with CSF’s B-Tube technology. A unique tank design allows the larger CSF core to still fit into the OEM cooling system housing. Another critical feature of the CSF BMW B58 high-performance heat exchanger is its unique triple-pass flow design. The water traveling through the upgraded heat exchanger flows through the radiator three times before exiting the cooler and flowing back into the manifold charge cooler. This ensures that the outlet water temperature of the heat exchanger is the absolute lowest it can be. The OEM design, as well as more expensive aftermarket designs, all have single-pass flow structures.
Significantly reduce Intake Air Temperatures (IAT) for Maximum Performance (with Faster Heat Soak Recovery) on your B58/B48 Powered BMW with a CSF Heat Exchangers.
The CSF #8131 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.

• Direct Plug-and-Play Design, Including CNC Machined “Quick Connect” Inlet/Outlet Water Fittings
• 68mm 2-Row Core with CSF’s B-Tube Technology (World’s Largest 2-Row Core)
• OEM CNC Machined Mounting Location Pins and Brackets
• Core Size: 524mm Length x 478mm Height x 69mm Wide
• Replaces OEM Part Number: 17118741830
• No Modifications Needed to Install
• 1-Hour “Mirror Finish” Hand Polish
• 6.5mm Multi-Louvered Fin Height
• Included Detachable Rock Guard
• Triple-Pass Flow Design