SKU: 86443588829

CSF Audi Classic and Small Chassis 5-Cylinder High-Performance All Aluminum Radiator

Sale price$312.75 Regular price$347.50
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

CSF Audi Classic and Small Chassis 5-Cylinder High-Performance All Aluminum RadiatorCSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your Audi Quattro B1 B2 B3 B4 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

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your Audi Quattro/B1/B2/B3/B4 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.

This Part Fits:

Year Make Model Submodel
1980-1983 Audi 4000 Base
1982-1983 Audi 4000 GT
1982-1983 Audi 4000 S
1991-1992 Audi 80 Base
1988-1992 Audi 80 Quattro Base
1988-1991 Audi 90 Base
1990-1991 Audi 90 Quattro 20v
1988-1989 Audi 90 Quattro Base
1986-1987 Audi Coupe GT
1990-1991 Audi Coupe Quattro 20v
1983-1985 Audi Quattro Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 86443588829

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4.8 ★★★★★
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N. Hale
Houston, US
★★★★★ 3
Runs big, and fabric may not be same color as picture
Color: Medium Grey, Size: 16, Color: Medium Grey, Size: 16
This suit was a good find for us, as we usually dress up for church, and my 13 yo son often wears suits. He normally wears a size 16, so that’s what we ordered, and in dark charcoal gray. The suit we got was a light, heathered gray that didn’t look much like the one in the picture. It was very wrinkly and thin, and a little scratchy. Also, the sleeves were way too long and the torso cut of the jacket was pretty wide. The pants were very large in the waist, but fit him decently in the length (he’s 5’4” and weighs 90 lbs). Overall the suit looked like it was drowning him, so I would order a size down unless you have a larger child/teen. Because of the ill fit, I haven’t had the chance to see what the suit looks like on him as it’s supposed to, but I guess I’ll return it or wait a year or two until he fills it out a bit more. Not overly impressed with the quality, so I’m not sure I’d pay $55 for this one again.
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Reviewed in the United States on October 20, 2025
A
Verified Purchase
angela barkley
Fort Morgan, US
★★★★★ 5
Great suit!!
Color: Navy Blue, Size: 8
Got this suit for my grandson he haven’t worn it yet but it looks great!! Quality is great I love it will purchase another color!!
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Reviewed in the United States on April 21, 2026
L
Verified Purchase
LikeRuth2
Omaha, US
★★★★★ 4
Beautiful
Color: Pink, Size: 16
The quality of the material could have been better....but overall my grandson received several compliments. I will order the baby blue as well. I appreciate the adjustable waistband. This is a keeper.
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Reviewed in the United States on May 30, 2026
T
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T Eddins
Phoenix, US
★★★★★ 5
Runs a little big
Color: Khaki, Size: 4
Runs a little big. My son is usually a 5T but I got him a 4T for a slimmer look
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Reviewed in the United States on April 7, 2026
R
Verified Purchase
reyna Mitchell
Battle Creek, US
★★★★★ 5
Suit is well made
Color: Navy Blue, Size: 8
It looks so good on him. Size is accurate. I will order again
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Reviewed in the United States on April 5, 2026

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