1. Car & Truck Engine Radiators Deals
  2. sku: 13868556822876762
  3. CSF 7091

CSF High Performance Radiator 710353070918

fits model: B8, S4, S5. make: Audi.

7091 Csf For Audi B8 S4 And S5 High Performance All-aluminum Radiator

( Brand: Csf ), ( Manufacturer Part Number: 7091 ), ( Part Type: Aluminum Radiator ), ( Air Freight Prohibited: False ), ( UPC: 710353070918 )

Review CSF For Audi And High Performance All aluminum Radiator fits B8 S4 S5

Introducing the CSF 7091 high performance all-aluminum radiator, specifically designed for Audi B8 S4 and S5 models. This radiator is not just an upgrade, it's a complete game changer for your vehicle's cooling system.

The CSF 7091 radiator boasts a sleek and modern design, featuring an all-aluminum construction for superior strength and durability. Each tube is individually hand-brazed, ensuring a perfect seal and eliminating the need for welds that can potentially fail over time. The radiator core is made up of tightly packed, thin-walled tubes, increasing the surface area for better heat dissipation.

One of the most notable features of this radiator is its advanced cooling technology. The CSF 7091 utilizes a unique serpentine core design, which allows for optimal airflow and efficient cooling. The radiator's large size also provides a greater cooling capacity, enabling your Audi B8 S4 or S5 to maintain optimal operating temperatures, even during the most demanding driving conditions.

Another advantage of this high performance radiator is its compatibility with the factory cooling system. The CSF 7091 radiator comes with all necessary mounting hardware, making installation a breeze. It also includes a built-in pressure cap and an electric fan mount, allowing you to retain the use of your vehicle's factory cooling fans.

In terms of aesthetics, the CSF 7091 radiator is a stunning upgrade to your Audi's engine bay. Its sleek design and high-quality finish will not only improve the overall look of your vehicle but will also enhance its performance.

In conclusion, the CSF 7091 high performance all-aluminum radiator is a must-have upgrade for any Audi B8 S4 or S5 owner who values superior cooling, durability, and visual appeal. With its advanced cooling technology, robust construction, and easy installation, this radiator is the perfect solution for those seeking to maximize the potential of their high-performance vehicle.

The CSF Radiator Part Number CFS-7091 is a high-performance all-aluminum radiator designed for Audi B8 S4 and S5 models. This radiator is known for its superior cooling capacity and durability. In this response, we will discuss the pros and cons of buying this radiator to help you make an informed decision.

Pros:

1. Superior Cooling Capacity: CSF radiators are known for their high cooling capacity. The CFS-7091 radiator is no exception. Its dense core design and large surface area allow it to dissipate heat more efficiently, keeping your engine cool under heavy loads or in high-performance driving conditions.

2. Durability: The CFS-7091 radiator is made entirely of aluminum, making it lightweight and resistant to corrosion. Its robust construction also ensures that it can withstand the rigors of high-performance driving.

3. OEM Fitment: This radiator is designed to fit directly into the Audi B8 S4 and S5 engine bay, making installation straightforward and hassle-free.

4. Improved Engine Performance: By keeping your engine cooler, the CFS-7091 radiator can help improve engine performance. Cooler engines run more efficiently, and the engine's power output can be maintained more consistently.

Cons:

1. Cost: The CFS-7091 radiator is more expensive than the OEM radiator. However, its superior cooling capacity and durability make it a worthwhile investment for those who demand the best from their Audi.

2. Weight: Although the all-aluminum construction makes the radiator lightweight compared to other materials, it may still add some weight to the vehicle.

3. Maintenance: Although the radiator is durable, it still requires regular maintenance, such as checking coolant levels and replacing the coolant periodically.

Conclusion:

The CSF CFS-7091 radiator is an excellent upgrade for Audi B8 S4 and S5 owners who demand superior cooling capacity and durability. Its OEM fitment ensures easy installation, while its superior cooling performance can help improve engine performance. Although it is more expensive than the OEM radiator, its durability and cooling capacity make it a worthwhile investment for those who demand the best from their Audi.

Recommendation:

If you are an Audi B8 S4 or S5 owner who engages in high-performance driving or demands the best from their vehicle, the CSF CFS-7091 radiator is an excellent upgrade. Its superior cooling capacity, durability, and OEM fitment make it a worthwhile investment for those who want to ensure their engine stays cool and performs at its best. However, if you are on a budget or do not demand the highest performance from your Audi, the OEM radiator may be sufficient for your needs.

Details:

Dual-Row 42mm Core: Incorporates Csf exclusive B-Tube technology for enhanced cooling performance and structural integrity. With over five decades of experience, CSF manufactures radiators that combine innovative technology with durability to ensure your engine operates at optimal temperatures. Ultra-Efficient Fin: Fin height of 6.5mm with multi-louvered design maximizes surface contact for heat dissipation. The design also boosts heat transfer surface area by approximately 15%, resulting in better thermal management and preventing overheating during high-performance driving or racing conditions.

This radiator features a 2-Row core with Csf exclusive B-Tube Technology, which enhances heat transfer and strength. All-Aluminum Race Drain Plug: Ensures reliable drainage and maintenance. Unlike traditional oval tubes, B-tubes are carefully formed and brazed over the seam, allowing for thinner, lighter aluminum that offers improved cooling efficiency increased durability. CNC Machined Components: Brackets and fittings designed for precise fit long-lasting durability.

Quick-Connect Inlet/Outlet: CNC-machined connections facilitate easy installation and secure fit. Features: Drop-in Fit: Installs directly into OEM location with no modifications necessary, compatible all components including quick-connect hoses, condenser, brackets, and fan shroud.

part #: 7091 price

  • $639.00

specifications radiatoranch:

  • for models: B8, S4, S5
  • for makes: Audi
  • brand: Csf
  • mpn: 7091
  • part type: Aluminum Radiator
  • air freight prohibited: False
  • upc: 710353070918

returns radiatoranch:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

payments radiatoranch:

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offer radiatoranch:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 2
  • started: May 23, 2026

shipping radiatoranch:

  • carrier: UPS
  • class: Standard
  • cost: $0.00
  • type: Fixed
  • service: UPS Ground
  • transit: 5-7 Days

seller radiatoranch:

  • city: Saint Joseph, Missouri
  • # reviews: 13003
  • rating: 99.7%

general radiatoranch:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Radiators
for models: b8, s4, s5, for makes: audi, part type: aluminum radiator, air freight prohibited: false,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 13868556822876762,

Csf 7091 Is Similar To:

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5 offers $639.00–$639.00 USD
  • Offer #1: $639.00 price + $0.00 shipping estimate = $639.00* total. 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". CSF Radiator.FREE SHIPPING
  • Offer #2: $639.00 price + $0.00 shipping estimate = $639.00* total. The CSF High-Performance Radiator is engineered specifically for Audi B8 platform vehicles including the A4, A5, S4, S5, Q5, and SQ5, as well as select Porsche Macan S/GTS models. Part Number:.FREE SHIPPING
  • Offer #3: $639.00 price + $0.00 shipping estimate = $639.00* total. 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.FREE SHIPPING
  • Offer #4: $639.00 price + $0.00 shipping estimate = $639.00* total. 2-Row 42mm High-Performance Core Featuring CSF s B-Tube Technology. As CSF continues to expand its VAG cooling performance catalog with more unique and world s first options, next on the list is the ever-popular B8 Audi S4/S5 platform.FREE SHIPPING
  • Offer #5: $639.00 price + $0.00 shipping estimate = $639.00* total.FREE SHIPPING

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