CSF - csf7091 - Audi B8 S4 & S5 High-Performance All-Aluminum Radiator

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your Audi 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 Audi. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. The CSF #7091 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.

• "Drop-in Fit" Requiring No Modifications to Install - Accepts All Attaching OEM Components Including "Quick Connect" Hoses, AC Condenser, Mounting Brackets and Fan Shroud
• Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
• 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
• CNC Machined Brackets and Fittings for Superb Fit and Durability
• CNC Machined "Quick-Connect" Inlet/Outlet Connections
• All-Aluminum Race Style Drain Plug
• Smooth Satin Finish

Brief Description: The CSF csf7091 High-Performance All-Aluminum Radiator is designed to provide enhanced engine cooling for Audi street, high-horsepower, and motorsports applications. It features a 2-row, 42mm dual-core design with CSF's exclusive B-Tube Technology, ultra-efficient multi-louvered fins, and a smooth satin finish.

Key Features & Performance Benefits:

• Drop-In Fit: Installs in the OEM location without modifications and accepts OEM attaching components, including quick-connect hoses, the AC condenser, mounting brackets, and fan shroud.
• B-Tube Technology: The engineered B-shaped tubes provide increased heat-transfer surface area and dual liquid laminar flow.
• Multi-Louvered Fin Design: Ultra-efficient fins are designed to maximize airflow and heat dissipation through the radiator core.
• Durable Construction: CNC-machined brackets and fittings, CNC-machined quick-connect inlet and outlet connections, and an all-aluminum race-style drain plug support fit and durability.

Key Product Specifications & Technical Data:

• Brand: CSF
• Part Number: csf7091
• Product Type: High-performance all-aluminum radiator
• Core Configuration: 2-row, 42mm dual core
• Tube Technology: CSF exclusive B-Tube Technology
• Fin Design: Multi-louvered with 6.5mm fin height
• Connections: CNC-machined quick-connect inlet and outlet connections
• Finish: Smooth satin finish

What's Included in the Box: The product data does not specify additional included items. The radiator is designed to accept the applicable OEM attaching components.

Fitment: Fits 2010–2015 Audi S4, 2013 Audi S5, 2013 Audi Q5, and 2013 Audi A6 Quattro, as listed in the supplied fitment data. Verify vehicle application before installation.

Fitments:
2008 Audi A5 Quattro Base
2009 Audi A4 Quattro Base
2009 Audi A5 Quattro Base
2009 Audi Q5 Premium
2009 Audi Q5 Premium Plus
2009 Audi Q5 Prestige
2010 Audi A5 Quattro Base
2010 Audi Q5 Premium
2010 Audi Q5 Premium Plus
2010 Audi Q5 Prestige
2010 Audi S4 Base
2010 Audi S5 Cabriolet
2011 Audi Q5 Premium Plus
2011 Audi Q5 Prestige
2011 Audi S4 Base
2011 Audi S5 Cabriolet
2012 Audi A6 Quattro Premium
2012 Audi A6 Quattro Premium Plus
2012 Audi A6 Quattro Prestige
2012 Audi A7 Quattro Base
2012 Audi Q5 Premium Plus
2012 Audi Q5 Prestige
2012 Audi S4 Base
2012 Audi S5 Cabriolet
2013 Audi A6 Quattro Premium
2013 Audi A6 Quattro Premium Plus
2013 Audi A6 Quattro Prestige
2013 Audi A7 Quattro Base
2013 Audi Q5 Premium Plus
2013 Audi Q5 Prestige
2013 Audi S4 Base
2013 Audi S5 Base
2013 Audi S5 Cabriolet
2014 Audi A6 Quattro Premium
2014 Audi A6 Quattro Premium Plus
2014 Audi A6 Quattro Prestige
2014 Audi A6 Quattro TDI Premium Plus
2014 Audi A6 Quattro TDI Prestige
2014 Audi A7 Quattro Premium Plus
2014 Audi A7 Quattro Prestige
2014 Audi A7 Quattro TDI Premium Plus
2014 Audi A7 Quattro TDI Prestige
2014 Audi Q5 Premium Plus
2014 Audi Q5 Prestige
2014 Audi Q5 TDI Premium Plus
2014 Audi Q5 TDI Prestige
2014 Audi S4 Premium Plus
2014 Audi S4 Prestige
2014 Audi S5 Premium Plus
2014 Audi S5 Prestige
2014 Audi SQ5 Premium Plus
2014 Audi SQ5 Prestige
2015 Audi A6 Quattro Premium Plus
2015 Audi A6 Quattro Prestige
2015 Audi A6 Quattro TDI Premium Plus
2015 Audi A6 Quattro TDI Prestige
2015 Audi A7 Quattro Premium Plus
2015 Audi A7 Quattro Prestige
2015 Audi A7 Quattro TDI Premium Plus
2015 Audi A7 Quattro TDI Prestige
2015 Audi Q5 Premium Plus
2015 Audi Q5 Prestige
2015 Audi Q5 TDI Premium Plus
2015 Audi Q5 TDI Prestige
2015 Audi S4 Premium Plus
2015 Audi S4 Prestige
2015 Audi S5 Premium Plus
2015 Audi S5 Prestige
2015 Audi SQ5 Premium Plus
2015 Audi SQ5 Prestige
2015 Porsche Macan S
2016 Audi A6 Quattro Premium Plus
2016 Audi A6 Quattro Prestige
2016 Audi A6 Quattro TDI Premium Plus
2016 Audi A6 Quattro TDI Prestige
2016 Audi A7 Quattro Premium Plus
2016 Audi A7 Quattro Prestige
2016 Audi A7 Quattro TDI Premium Plus
2016 Audi A7 Quattro TDI Prestige
2016 Audi Q5 Premium Plus
2016 Audi Q5 Prestige
2016 Audi Q5 TDI Premium Plus
2016 Audi Q5 TDI Premium Plus S-Line
2016 Audi Q5 TDI Prestige
2016 Audi Q5 TDI Prestige S-Line
2016 Audi S4 Premium Plus
2016 Audi S4 Prestige
2016 Audi S5 Premium Plus
2016 Audi S5 Prestige
2016 Audi SQ5 Premium Plus
2016 Audi SQ5 Prestige
2016 Porsche Macan S
2017 Audi A6 Quattro Competition
2017 Audi A6 Quattro Premium Plus
2017 Audi A6 Quattro Prestige
2017 Audi A7 Quattro Competition
2017 Audi A7 Quattro Premium Plus
2017 Audi A7 Quattro Prestige
2017 Audi Q5 Premium Plus
2017 Audi Q5 Prestige
2017 Audi S5 Base
2017 Audi SQ5 Premium Plus
2017 Audi SQ5 Prestige
2017 Porsche Macan GTS
2017 Porsche Macan S
2018 Audi A6 Quattro Premium
2018 Audi A6 Quattro Premium Plus
2018 Audi A6 Quattro Prestige
2018 Audi A6 Quattro Sport
2018 Audi A7 Quattro Premium Plus
2018 Audi A7 Quattro Prestige
2018 Porsche Macan GTS
2018 Porsche Macan S
2019 Porsche Macan S
2020 Porsche Macan S
2021 Porsche Macan S

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: N
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1