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HomeShopRadiatorsCSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091
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CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 2
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 3
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 4
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 5
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 6
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 7
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 8
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 9
CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091 - Image 10

CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator Part #7091

SKU: 7091

Original price was: $689.00.Current price is: $639.00.

In stock

18 in stock

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
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Description

The CSF Audi B8 S4 & S5 High-Performance All-Aluminum Radiator is engineered for optimal cooling efficiency, ensuring your vehicle maintains peak performance under demanding conditions. With over five decades of manufacturing experience, CSF delivers a radiator designed specifically for high-performance street and track applications. Its 2-Row core features CSF’s exclusive B-Tube Technology, which replaces traditional oval tubes with carefully formed ‘B’-shaped tubes that are brazed over the seam for enhanced strength and heat transfer. This innovative design allows for thinner, lighter aluminum material while increasing heat transfer surface area by approximately 15%, resulting in superior cooling performance in a compact form factor. The radiator’s dual liquid laminar flow within the B-tubes and ultra-efficient multi-louvered fins maximize airflow and heat dissipation, supported by industry-leading wind tunnel testing to ensure maximum efficiency. Installation is straightforward, as the radiator is designed as a ‘Drop-In Fit’ that requires no modifications to the OEM components, including quick-connect hoses, mounting brackets, and fan shroud. CNC machined brackets and fittings ensure a precise, durable fit, while the aluminum race-style drain plug adds an extra touch of quality. The smooth satin finish enhances durability and aesthetic appeal. Whether for daily driving or high-performance racing, this radiator is built to meet the demands of your Audi, providing reliable cooling in a lightweight, efficient package that helps your vehicle run at its best.

Features:

  • Drop-in fit design requiring no modifications for easy installation
  • Compatible with OEM components including quick-connect hoses, AC condenser, and fan shroud
  • 2-Row, 42mm core with CSF’s exclusive B-Tube technology for improved heat transfer
  • Ultra-efficient multi-louvered fins with 6.5mm fin height for maximum surface contact
  • CNC machined brackets and fittings for superior fit and durability
  • All-aluminum construction with a race-style drain plug
  • Smooth satin finish for corrosion resistance and aesthetic appeal

Fitment:
Audi A4 Quattro Base 2009
Audi A5 Quattro Base 2008
Audi A5 Quattro Base 2009
Audi A5 Quattro Base 2010
Audi A6 Quattro Competition 2017
Audi A6 Quattro Premium 2012
Audi A6 Quattro Premium 2013
Audi A6 Quattro Premium 2014
Audi A6 Quattro Premium Plus 2012
Audi A6 Quattro Premium Plus 2013
Audi A6 Quattro Premium Plus 2014
Audi A6 Quattro Premium Plus 2015
Audi A6 Quattro Premium Plus 2016
Audi A6 Quattro Premium Plus 2017
Audi A6 Quattro Premium Plus 2018
Audi A6 Quattro Prestige 2012
Audi A6 Quattro Prestige 2013
Audi A6 Quattro Prestige 2014
Audi A6 Quattro Prestige 2015
Audi A6 Quattro Prestige 2016
Audi A6 Quattro Prestige 2017
Audi A6 Quattro Prestige 2018
Audi A6 Quattro Sport 2018
Audi A6 Quattro TDI Premium Plus 2014
Audi A6 Quattro TDI Premium Plus 2015
Audi A6 Quattro TDI Premium Plus 2016
Audi A6 Quattro TDI Prestige 2014
Audi A6 Quattro TDI Prestige 2015
Audi A6 Quattro TDI Prestige 2016
Audi A7 Quattro Base 2012
Audi A7 Quattro Base 2013
Audi A7 Quattro Competition 2017
Audi A7 Quattro Premium Plus 2014
Audi A7 Quattro Premium Plus 2015
Audi A7 Quattro Premium Plus 2016
Audi A7 Quattro Premium Plus 2017
Audi A7 Quattro Premium Plus 2018
Audi A7 Quattro Prestige 2014
Audi A7 Quattro Prestige 2015
Audi A7 Quattro Prestige 2016
Audi A7 Quattro Prestige 2017
Audi A7 Quattro Prestige 2018
Audi A7 Quattro TDI Premium Plus 2014
Audi A7 Quattro TDI Premium Plus 2015
Audi A7 Quattro TDI Premium Plus 2016
Audi A7 Quattro TDI Prestige 2014
Audi A7 Quattro TDI Prestige 2015
Audi A7 Quattro TDI Prestige 2016
Audi Q5 Premium 2009
Audi Q5 Premium 2010
Audi Q5 Premium Plus 2009
Audi Q5 Premium Plus 2010
Audi Q5 Premium Plus 2011
Audi Q5 Premium Plus 2012
Audi Q5 Premium Plus 2013
Audi Q5 Premium Plus 2014
Audi Q5 Premium Plus 2015
Audi Q5 Premium Plus 2016
Audi Q5 Premium Plus 2017
Audi Q5 Prestige 2009
Audi Q5 Prestige 2010
Audi Q5 Prestige 2011
Audi Q5 Prestige 2012
Audi Q5 Prestige 2013
Audi Q5 Prestige 2014
Audi Q5 Prestige 2015
Audi Q5 Prestige 2016
Audi Q5 Prestige 2017
Audi Q5 TDI Premium Plus 2014
Audi Q5 TDI Premium Plus 2015
Audi Q5 TDI Premium Plus 2016
Audi Q5 TDI Premium Plus S-Line 2016
Audi Q5 TDI Prestige 2014
Audi Q5 TDI Prestige 2015
Audi Q5 TDI Prestige 2016
Audi Q5 TDI Prestige S-Line 2016
Audi S4 Base 2010
Audi S4 Base 2011
Audi S4 Base 2012
Audi S4 Base 2013
Audi S4 Premium Plus 2014
Audi S4 Premium Plus 2015
Audi S4 Premium Plus 2016
Audi S4 Prestige 2014
Audi S4 Prestige 2015
Audi S4 Prestige 2016
Audi S5 Base 2013
Audi S5 Base 2017
Audi S5 Premium Plus 2014
Audi S5 Premium Plus 2015
Audi S5 Premium Plus 2016
Audi S5 Prestige 2014
Audi S5 Prestige 2015
Audi S5 Prestige 2016
Audi SQ5 Premium Plus 2014
Audi SQ5 Premium Plus 2015
Audi SQ5 Premium Plus 2016
Audi SQ5 Premium Plus 2017
Audi SQ5 Prestige 2014
Audi SQ5 Prestige 2015
Audi SQ5 Prestige 2016
Audi SQ5 Prestige 2017

Additional information

Weight 23.8 lbs
Dimensions 38 × 23.1 × 8.9 in
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
upc

710353070918
brand

CSF
part_number

7091

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