SKU: 35296986821

034Motorsport Radiator Upgrade - Audi / B9 / B9.5 / S4 / S5 / RS5 / C8 / S6 / S7

Sale price$372.60 Regular price$414.00
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  • CAN

Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

034Motorsport Radiator Upgrade - Audi / B9 / B9.5 / S4 / S5 / RS5 / C8 / S6 / S7If you drive your B9 B9. 5 Audi S4 S5, RS4 RS5 & C8 S6 S7 on track, push it hard on backroads, or even during daily commutes in hot climates, the 034Motorsport Radiator Upgrade is the perfect solution to help regulate and maintain optimal engine coolant temperature. High performance driving, especially with added power, can push your engine to generate excessive heat that the factory main radiator may struggle to dissipate. This can lead to elevated

 

If you drive your B9/B9.5 Audi S4/S5, RS4/RS5 & C8 S6/S7 on track, push it hard on backroads, or even during daily commutes in hot climates, the 034Motorsport Radiator Upgrade is the perfect solution to help regulate and maintain optimal engine coolant temperature. High-performance driving, especially with added power, can push your engine to generate excessive heat that the factory main radiator may struggle to dissipate. This can lead to elevated coolant temperatures, reducing the effectiveness of your vehicle’s cooling system and potentially impacting performance. The 034Motorsport Radiator Upgrade is designed to address these challenges, ensuring your EA839 2.9TT or 3.0T stays cool no matter the conditions.

The 034Motorsport Radiator Upgrade is designed to replace your factory radiator with the larger and more efficient 034Motorsport Radiator, engineered in collaboration with the cooling experts at CSF Radiators. The 034Motorsport Radiator Upgrade utilizes an all-aluminum construction, engineered to be a drop-in replacement for the factory radiator. Featuring a thicker performance radiator core and re-engineered billet aluminum end tanks to improve the efficiency of coolant flow, the 034Motorsport Radiator Upgrade increases the coolant capacity by 40% and improves heat transfer from the coolant to the air. This improvement in capacity results in a 16% improvement in cooling capacity by allowing your vehicle to retain the optimal temperature during high-performance driving and mitigating temperatures from rising!

Not only is it larger, but the 034Motorsport Radiator Upgrade utilizes 65 individual 2-row B-tube technology cooling tubes that carry coolant across the radiator core to help disperse heat, significantly reducing recovery time between pulls! CSF’s “B-tubes” are carefully formed and seam-brazed for a stronger, more efficient design than traditional welded “O” tubes. This allows for thinner, lighter aluminum with improved cooling. The seam-brazed inlet increases heat transfer surface area by ~15%, delivering the efficiency of two smaller tubes within the same space. This improved tube design over the factory is integral to enhancing the cooling process of the 034Motorsport Radiator Upgrade.

034Motorsport Engineers extensively tested the 034Motorsport Radiator Upgrade on 034Motorsport's Development B9 S4 & RS5 on backroads and at multiple racetracks. Whether you’re looking to tackle backroad and track adventures or live in a higher-temperature climate, the Radiator Upgrade provides the cooling performance you need to keep your engine running at its best, lap after lap, mile after mile, regardless of the ambient temperature!

Additional Cooling Upgrades for B9/B9.5 Audi S4/S5:

When looking to further improve the cooling performance of your Audi B9 S4/S5, consider pairing the 034Motorsport Radiator Upgrade with the Auxiliary Radiator Upgrade Kit, which replaces the factory side-mounted radiator with an upgraded unit from CSF Radiators!

Features:

  • All Aluminum Construction
  • Billet Aluminum End Tanks With Machined Inlet & Outlet, and Mounting Provisions
  • 100% Tig Welded
  • Direct, Drop-In Installation, Compatible with OEM Accessories
  • 40% Increase in Radiator Coolant Capacity Over Factory Radiator
    • OEM: 2.5L Coolant Capacity
    • 034: 3.5L Coolant Capacity
  • Increased Core Thickness Over Factory Radiator
    • OEM: 35mm
    • 034: 42mm
  • 65 2-Row B-Tubes with 5mm Fin Height
  • 16% Increase in Cooling Capacity
  • Manufactured by CSF Specifically for 034Motorsport

OE Part Interchange:

  • 8W0 121 251 H
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: 35296986821

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4.8 ★★★★★
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Babs Kilgore
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★★★★★ 5
Chuck a Glowing Ball
Size: 18in
This baby ball checker is good for a medium sized dog because of the size of the ball which glows in the dark. It is a handy feature for playing with the dog at night. It is fairly priced, durable. It doesn’t squeak and is not made to be chewed. F your dog likes to run around after balls this should be good for you.
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Reviewed in the United States on December 19, 2025
C
Verified Purchase
Country Heaven
Bozeman, US
★★★★★ 5
This is the one to buy if you wish to get the most out of your arm and give the most to your dog
Size: 25in
The pro series must be made of a higher quality plastic than the original version, as the stiffness of the Pro series chucker allows for way more distance with less effort and greater control (for line drives, high arching throws, and bouncing grounders). Your dog will thank you endlessly for choosing the Pro over the regular (original) models. I have an old legacy original model that I keep in my truck for road trips that works reasonably well, though not as well as the Pro version. Here’s the thing: Before purchasing the Pro model, I ordered another original version (same length, 25”) and was instantly disappointed in how soft and leverageless was the chucker. Either my (original) original one (a Goodwill find) stiffened over the course of years, or the newly made “original” versions are now made with a softer kind of plastic. This soft chucker led to a disastrous throwing experience for my dog. Instead of thrilling at each throw and the lightning fast response of my dog, I hated every throw. I returned the “original” model and ordered the only 25Pro model I could find at 25” on Amazon… a glow in the dark version. There may be a benefit to the glow in the dark feature, but I don’t really care about that. It’s the leverage that I wanted and that’s what I got with the Pro version 25”.
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Reviewed in the United States on August 22, 2025
K
Verified Purchase
Kelly Mikulcik
Lowell, US
★★★★★ 5
Great design
Size: 25in
Ball is very durable yet soft. Whistles when you throw it and goes very far. Handle is ergonomic with a nice rubber grip. Both the launcher and ball glow green in the dark. My GSD loves it. She’s 75 lbs and the medium ball is fine.
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Reviewed in the United States on January 23, 2026
R
Verified Purchase
Rider1
West Palm Beach, US
★★★★★ 5
Husband and dogs highly approve.
Size: 25in
My husband wanted us to replace one from a different company that broke. It had to have a glow in the dark ball, since he sometimes plays fetch with the dogs at night. He couldn’t love this more. Says it’s so much better than the other one, the whole thing glows in the dark and it throws farther. According to him, it’s the best ever.
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Reviewed in the United States on August 9, 2025
M
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Megan
Bozeman, US
★★★★★ 4
Glow In The Dark Ball
Size: 18in
I gave this 4/5 stars because the ball is a little small for my dog size so I was hoping the sizing was easier to read. It could have been an error on my end. The ball is great though! It lights up nicely when it is out in the sunlight or under a light for a long periods of time, it lights up at night so you can play with your dog at night when it is cooler!
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Reviewed in the United States on July 2, 2025

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