SKU: 92547365224

CSF Cooling - Racing & High Performance Division Audi B8 S4/S5 and 3.0L/3.2L Audi Models High-Performance All-Aluminum Radiator (7091)

Sale price$287.55 Regular price$319.50
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Description

CSF Cooling - Racing & High Performance Division Audi B8 S4/S5 and 3.0L/3.2L Audi Models High-Performance All-Aluminum Radiator (7091)Audi B8 S4 S5 & 3. 0L 3. 2L Audi Models High Performance All Aluminum Radiator. 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. 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

Audi B8 S4/S5 & 3.0L/3.2L Audi Models High-Performance All-Aluminum Radiator. 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.

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.The CSF Audi radiator is a true "Drop-in fit" design requiring no modifications to install. OE style brackets are all CNC machined and welded for the best durability possible. Inlet/Outlet connections are designed to match the OE connections so you can reuse OEM hoses or aftermarket. In addition, CSF has added an upgraded plate-type transmission oil cooler to the left side tank for improved transmission cooling in vehicles with automatic transmissions (comes pre-plugged for use in manual transmission vehicles).

Features:

  • 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
  • CSF, The Cooling Experts, have been serving the US aftermarket for almost 4 decades. With over 30 million units sold, CSF is your exclusive source for Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps.
  • Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
  • CNC Machined "Quick-Connect" Inlet/Outlet Connections
  • CNC Machined Brackets and Fittings for Superb Fit and Durability
  • All-Aluminum Race Style Drain Plug
  • Smooth Satin Finish
  • Drop-in Fit

Get it all from CSF! With over 3000 models to chose from, CSF's coverage is second to none.When you choose CSF, you are dealing directly with the manufacturer, not a broker or an importer. CSF's factories are ISO certified, and are OE suppliers to many US, German and Asian manufacturers. When you purchase a CSF product, you can be rest assured that it has been manufactured on the same production lines with the same high quality standards as their OE customers. Every single radiator is subject to rigorous testing procedures such as Hydrostatic Testing, Vacuum decaying and life cycle testing, and is designed to always be a "drop-in fit".

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92547365224

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4.0 ★★★★★
Based on 23 reviews
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Ashley Rogers
Pawtucket, US
★★★★★ 5
Love these shoes!
UGG dupes! These are amazing! I love how comfortable these are. I have worn these quite a few times now with no issue. Definitely worth the price! I have seen a couple of complaints about the durability of these, but at the selling price I would gladly repurchase these over paying for the UGG brand. They fit TTS. I will definitely be ordering these in the lighter color!
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Reviewed in the United States on April 23, 2026
B
Verified Purchase
Brianna
Waukegan, US
★★★★★ 5
Sooo cute and comfortable!
I have two pairs of these sandals in pink and a cream color and they are sooo freaking comfortable! I have sciatic nerve pain so my leg gets fatigued fairly quickly from standing but I find these shoes allow me to stand longer and more comfortably. I’m hoping they’ll have the black sandals in an 11 back in stock soon because I want those as well 😆 If you’re looking for cute and functional footwear for the summer you can’t go wrong with these.
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Reviewed in the United States on May 20, 2026
S
Verified Purchase
Sarah
Battle Creek, US
★★★★★ 1
Not it.
Size: 10, Color: Nude, Size: 10, Color: Nude
I ordered these and was highly disappointed. The first pair I got, the velcro pieces were coming off. The threading was either coming undone or just wasnt there. On both shoes. I sent them back, had them send me a new pair, hoping it was just a fluke, cause those do happen. The next pair was better, but the corners on the velcro pads were still coming up, and i just didnt trust it to stay together. I sent them back and got a refund. As for fit, the first pair fit great, my foot was a little to skinny I think, or the straps were too loose even pulled as tight as they could go while still being able to connect the velcro pieces. It was something I could have probably worked with, they looked cute still and I still wanted to love them. The second pair, however, straps were still too loose. That didnt change. However, I got the same size, but this pair, my toes were too long for. Like, they were up on the little toe ledge thats supposed to frame your foot. That was uncomfortable. So I feel like the sizing was inconsistent. Another reason I opted to send them back for a refund. The shoes are cute, and i usually dont have issues with this brand. I have a couple pairs of boots from them that I absolutely love. But these sandals were a huge disappointment, unfortunately.
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Reviewed in the United States on May 29, 2026
C
Verified Purchase
Cadence Haase
Grantham, US
★★★★★ 4
Comfy but run large!
Runs large IMO. I originally ordered a 7 and they were much too big and the straps were way too long. I ended up returning them and ordering a 6.5, and I love them. They are SO comfy and they go with just about everything. I will say the top strap gets smudged easily, but I’ve just been wiping them with a wet cloth and the smudges are gone.
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Reviewed in the United States on July 14, 2025
T
Verified Purchase
Tawni
San Leandro, US
★★★★★ 5
Great shoes
Size: 7.5, Color: Light Brown
Love these! Super comfy and love that they give me a little height. I'm a 7 to 7.5. had to go with the 7s. Don't recommend sizing up. The color is nice too. Definitely a great purchase.
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Reviewed in the United States on May 21, 2026

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