Product Information:

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay ahead of the pack when it comes to radiator technology!

“B-Tube” technology – Unlike a regular oval shape “O” type radiator tube, CSF uses a specially engineered tube in a 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 (better cooling efficiency) because this design is actually stronger than normal “O” shape tubes that are welded.

The design (inlet in the middle of tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes. You get the efficiency of 2 smaller tubes vs. 1 large tube within the same space criteria. With “B-tubes” you are able to get “dual liquid laminar flow.”

High-Efficiency Multi-Louvered Fin – CSF 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.

Each CSF high-quality radiator is completed with an industry-leading 1 hour, hand polished “Show-Stopper™ mirror finish.” Our hand polishing tools and techniques in our new polishing center located at the end of the production line ensure that every CSF cooling system looks just as good as it performs.

Features

  • CAD/CAM designed using Unigraphics™ Software
  • OE radial and deep drawn aluminum end tanks
  • “B-Tube” Technology – Stronger, most efficient tube in the world
  • “Racing Style” Aluminum Drain Plug
  • Brazed in CAB Furnace
  • ISO 9001/9002 certification
  • Military Grade (special clad) aluminum used for tubes, fins, header, plates, and side brackets (JIS 3003 spec minimum)
  • CNC machined fittings
  • “Master Class” TIG welding

Benefits

  • Wind tunnel tested for optimal radiator core cooling efficiency

Please note: For automatic transmissions only. For manual transmissions, use CSF 7045.

Application:

  • 2011+ BMW 1 Series M
  • 08-11 BMW 135i
  • 07-11 BMW 335

Shipping:

I may either ship through USPS or UPS at my own discretion.

Products are usually shipped out Monday – Saturday. Please contact me through email for assistance regarding other shipping methods.

Return policy:

When receiving your package, please open all of the boxes immediately to  check if all the contents are inside and not damaged. All damaged or defective items must be reported within 2 business days from the day the packaged is delivered. If the package appears to be damaged on the outside, please refuse to accept it from the carrier; or please make sure when signing the shipper's proof-of-delivery slip, you include a note stating that the package is or appears damaged. If you do accept a damaged shipment, please inform us immediately. Depending on the product and where/how it was shipped, it may be necessary for you to deal with the carrier. 

If the product received is defective, a replacement will be sent as soon as possible. If you decide to return the defective item, rather than replace it, a restocking fee will be assessed (15-20% depending on the item) and your original shipping and processing charges will not be refunded. Also, returned products must be in its original packaging which allows me to re-sell the product. I will refuse any damaged or products that are not in good condition. 

If after 30 days of receiving your product, it proves to be defective, we would like for you to deal with the manufacturer. They will inform you on how to proceed based on their policies. 

If you are unhappy in any way, please contact me through eBay messages. I will provide you instructions on how and where to return the product.SR

Terms and policy:

  • All of my products are 100% brand new unless otherwise stated in the description above.
  • All sales are final unless item is defective upon delivery. If for any reason the product has to be returned, a 15-20% restocking fee will be implemented.
  • As mentioned above, please inspect your order upon receipt.  No claims will be honored after 2 business days of delivery.
  • We will reimburse you the actual shipping fees for exchange if we shipped incorrect quantity, item, or defective item.
  • All items (except those exempted) are intended for off road use only, may never be used on public roads and highways