SKU: 26978721160

CSF High-Performance Radiator (N20, N55) - F2x, F3x

Sale price$544.05 Regular price$604.50
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Description

CSF High-Performance Radiator (N20, N55) - F2x, F3xThe Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all aluminum direct fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off road, marine, and industrial

The Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all-aluminum direct-fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off-road, marine, and industrial use. All CSF cooling systems are designed and engineered to maintain optimal engine temperatures, even under the most extreme driving conditions.

With over 50 years of experience and over 40 million cooling systems sold globally, CSF has earned the industry reputation of being “THE COOLING EXPERTS”.

  • Over 50 Years in Business
  • ISO 9001 Certified – True Manufacturer
  • Over 150,000 Radiators and Condensers in Stock over North America
  • Over 650,000 Units Sold Annually, with Manufacturing and Warehousing Capacity for 1 Million Units

CSF prides itself on using the most advanced technologies, machines, and experienced personnel to design, develop, and manufacture the world’s best cooling systems. With three privately owned manufacturing facilities, and a global cooling network formed over the past 75 years, CSF houses the industry’s best machines and brightest minds. Our engineering staff designs many of the machines in-house, giving CSF the innovative edge when introducing new technologies to the industry.

PRODUCT INFORMATION

THE ULTIMATE COOLING SOLUTION FOR THE F-SERIES N20 AND N55 ENGINE


The CSF High Performance Radiator is the ultimate cooling solution for race and high-performance N20 or N55 powered F2x and F3x models.

This high-efficiency, all-aluminium radiator removes the plastic end tanks which are prone to failure and features an industry-leading core design with CSF's exclusive B-Tube technology along with an ultra-efficient 6.5mm multi-louvered fin height design which improves cooling by up to 25-30%.

Direct replacement for BMW part number 17117618807 (Automatic) or 17117600520 (Manual).

FEATURES

  • Two-row 42mm core (dual core) featuring CSF's exclusive B-tube technology.
  • 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-aluminium drain plug.
  • Hand-polished mirror finish.
  • Available for Auto/DCT (#CSF7081) and manual (#CSF7080) models.
  • Drop-in fitment, requiring no modifications to install. Accepts all standard attached OEM components including "quick-connect" hoses, AC condenser, mounting brackets, and fan shroud.


Models
  • 1 Series / F20 (2012-2019) / M135i
  • 1 Series / F20 (2012-2019) / 125i
  • 2 Series / F22 / F23 (2014-2021) / M235i
  • 2 Series / F22 / F23 (2014-2021) / 228i
  • 2 Series / F22 / F23 (2014-2021) / 220i
  • 3 Series / F30 / F31 / F34 (2012-2018) / 335i
  • 3 Series / F30 / F31 / F34 (2012-2018) / 328i
  • 3 Series / F30 / F31 / F34 (2012-2018) / 320i
  • 4 Series / F32 / F33 / F36 (2014-2020) / 435i
  • 4 Series / F32 / F33 / F36 (2014-2020) / 428i
  • 4 Series / F32 / F33 / F36 (2014-2020) / 420i
                    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: 26978721160

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                    4.9 ★★★★★
                    Based on 13 reviews
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                    Product Reviews
                    M
                    Verified Purchase
                    M
                    Omaha, US
                    ★★★★★ 3
                    Nice-ish chair but not what I expected.
                    Color: Grey
                    Nice chair basically, good looking, and assembly went well, the wheels roll very nicely, lumbar support is good too, with comfy seat back. However, the "seat cushion" design itself is very odd, because the seat cushion is much thicker at the rear than it is at the front, thus you're constantly slipping off forward, always needing repeatedly to lift up and get back on the seat up further where you belong; while the seat tilt adjustments are of no help with this problem, no matter what setting you will be slipping off forward. The lever for adjusting reclining ability is very cumbersome and awkward to use. The arm rests are ok, comfy, but lack the ability to raise or lower, all you can do if flip it up totally out of your way. I wish I could return and exchange this chair for something better but there is no way this could easily be disassembled and returned in the box that is long since gone. This came in a box really super efficiently and very tightly packed, give them credit and kudos for the great packing design. Maybe, hopefully, the manufacturer has some suggestions for replacement when they see this review.
                    WAS THIS REVIEW HELPFUL?YesReportShare
                    Reviewed in the United States on November 7, 2025
                    J
                    Verified Purchase
                    Jeffrey Young
                    Cuba, US
                    ★★★★★ 5
                    Surprisingly Comfortable for Long Hours
                    I was honestly expecting one of those oversized chairs that look comfortable in pictures but feel cheap in person. This one actually feels solid. The seat is wide without feeling awkward, and the cushion is thick enough that I don’t feel the frame underneath after sitting for a while. The armrests being adjustable was a bigger deal than I thought, especially for working at a desk for hours. It also rolls much smoother and quieter than my old office chair. Assembly took some time, but nothing complicated. Once put together, it feels sturdy and doesn’t wobble. The reclining function is nice too when taking breaks or watching videos. Overall it feels more “heavy duty” than most chairs in this price range.
                    WAS THIS REVIEW HELPFUL?YesReportShare
                    Reviewed in the United States on May 25, 2026
                    J
                    Verified Purchase
                    Julie Thurston
                    Chelsea, US
                    ★★★★★ 5
                    Big Guy Approved – No More Chair Drama
                    Finally found a big and tall office chair that doesn’t quit on me. The 600lbs support feels rock solid, and that wide spring cushion? Like sitting on a couch at my desk. I use it for work, gaming, even late-night scrolling—still comfy. Smooth wheels, adjustable arms, ergonomic back… it just works. If you’re tired of chairs tapping out early, this one’s built different.
                    WAS THIS REVIEW HELPFUL?YesReportShare
                    Reviewed in the United States on May 6, 2026
                    A
                    Verified Purchase
                    Amazon Customer
                    Charlottesville, US
                    ★★★★★ 5
                    Worth every penny.
                    This chair is exactly what I need for working from home. Its spacious seat and high weight capacity make it incredibly comfortable and reliable. The ergonomic design provides excellent back support, preventing fatigue even after long periods of sitting. The adjustable armrests are convenient and add extra comfort. The PU leather material gives it a premium feel while maintaining practicality for everyday use. I am very satisfied with this purchase and will definitely buy from them again.
                    WAS THIS REVIEW HELPFUL?YesReportShare
                    Reviewed in the United States on May 25, 2026
                    D
                    Verified Purchase
                    DeChele Walker
                    San Leandro, US
                    ★★★★★ 5
                    Great sturdy chair!
                    Color: Dark Black
                    The chair is very comfortable for long term sitting. I’d say the best part is that the arms also move around for those of us with bigger thighs. Totally worth the buy!
                    WAS THIS REVIEW HELPFUL?YesReportShare
                    Reviewed in the United States on May 26, 2026

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