CSF Aluminum Performance Radiator - E82 135i/1M, E9X 335i, E89 Z4 35i Manual

All-aluminum, keeps your E9X 335i or E8X 135i cooler and out of limp mode!

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Price:
$449.99

BimmerWorld View - CSF provides a high-quality product that exceeds OE standards, gets rid of the plastic end tanks, and improves cooling by 25-30% - typically enough to keep these hot turbo cars out of limp mode on track!  Drop-in fitment and more efficient cooling for your street or track car.
  • Drop-in fitment to E82 135i/1M and E90/E92 335i manual transmission models
  • High performance aluminum core
  • Aluminum endtanks instead of plastic
  • CSF B-Tube design
  • Designed and tested in the USA
CSF Aluminum performance radiators feature a thicker core combined with their B-tube design to offer greatly enhanced cooling performance with improved durability. Instead of a single oval radiator tube, CSF has two tubes in the shape of a "B" that have more surface area and greater strength. In addition, CSF can use a thinner material that is more efficient and lighter. Adding lightness has its benefits as a thicker core will mean the radiator and extra coolant will weigh more (thicker is not always the best). Read more on CSF B-Tube tech by clicking here. By doing away with the plastic end tanks and connections, CSF has eliminated the main weak points of the stock radiator design. The plastic has a tendency to crack and leak, especially on track cars where the extreme heat makes the plastic brittle.

The E82/E90/E92 CSF Aluminum radiator is designed as a drop-in replacement to the stock system. It uses all of the factory plastic shrouding, hose connections, and mounting points. Although not a fitment concern, the thicker core will tighten tolerances, specifically between the expansion tank and accessory belt. All CSF radiators receive design and development in the USA with additional wind tunnel, vibration, thermal cycle, burst pressure, and salt spray testing done at their production facilities in Southeast Asia. During manufacturing, radiators are individually tested for leaks and receive a 30-point inspection prior to shipping. This part is a much higher level of quality than typical Chinese factory parts. CSF is an OE supplier to several manufacturers as well as providing private-label products for other radiator brands. CSF radiators have a two year warranty.

BMW Fitments:

1 Series
E82 / E88 (08-13) > 135i
E82 / E88 (08-13) > 135is
E82 / E88 (08-13) > 1M (11-12)
3 Series
E90 / E91 / E92 / E93 (06-13) > 335i
E90 / E91 / E92 / E93 (06-13) > 335is
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