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Description
CSF 2011+ BMW 1 Series M / 08-11 BMW 135i / 07-11 BMW 335i M/T RadiatorCSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your 1M 135i 335i 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
CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your 1M/135i/335i 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 |
|---|---|---|---|
| 2011 | BMW | 1 Series M | Base |
| 2008-2013 | BMW | 135i | Base |
| 2013 | BMW | 135is | Base |
| 2007-2013 | BMW | 335i | Base |
| 2012-2016 | BMW | Z4 | sDrive28i |
| 2009-2016 | BMW | Z4 | sDrive35i |
Shipping Notes
- Free Standard Shipping on $100+ Orders 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.
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4.2 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Works and feels Great
Sun protection factor: 70 Sun Protection Factor (SPF), Size: 6 Ounce (Pack of 1)
I just got back from The beautiful island of St Thomas USVI and used this product all throughout my vacation. I’m really picky about sunscreen formula and having dark combination skin, it’s pretty important that I find one I can work with. This was great! It was hydrating but didn’t feel too oily, the smell was subtle and not overwhelming, and I didn’t burn all week especially when I was on a different beach in different areas of the island it worked beautiful for me
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Reviewed in the United States on July 15, 2025
★★★★★ 5
I will buy this again and again
Size: 1 Fl Oz (Pack of 1), Size: 1 Fl Oz (Pack of 1)
I have normal skin. And I always thought that I don't need any extra effort to take care of my skin. This theory of mine was debunked once I started to get fine lines after my 30th birthday. Somebody suggested me to use retinol. I did a lot of research on how retinol works. And came to the conclusion that retinol actually helps to fight skin problems like wrinkled skin, acne, acne marks, and dull and uneven skin. Technically, it helps to unclog the skin pores, increase collagen production, exfoliates old layer of skin, and makes it a fresher and plump appearence.
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True Skin Retinol
This is a perfect retinol if you are using retinol for the first time. You can also get product called "retinoid" which is more concentrated than retinol. Dermatologist recommends to use" retinol" not "retinoid" [ again if you are just the beginner].
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RESULTS
Believe me this starts to work right after the night you apply but it might take several weeks to see an improvement in the looks and feel of your skin. This is my fifth week of using this product. I can already see and feel the differences in my skin texture. The pores are so tight. Skin is getting softer and bright. People around me have started to pass good comments on my skin appearance. I regret that I did not use this product in my 20's. Why nobody told me how important is retinol for our skin?
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Again, dont expect to see the results over the night. This is slow process. At least wait for 3 weeks to see the improvement.
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In the beginning, my skin looked worst after applying retinol, it was dry and flaky. I was worried and almost decided to quit. But again, I did some research and found out that it is normal. It takes some time for your skin to get adjusted. Once it gets adjusted you will be on the wheels of perfect skin.
1) How frequently I used it?
Every other night after cleansing
2) How much?
Apply a pea size, rub it gently all over your face and neck
3) Can I mix it with other products?
Don't mix it with Vitamin C. You can mix it with hyaluronic acid and niacinamide. But True Skin Retinol has both of these good stuff.
4) What should I apply after using this?
Strictly apply good amount of moisturizer after retinol
Just don't wait and go for it. I will update here if I see any changes.
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Reviewed in the United States on November 27, 2022
★★★★★ 5
Great product
Size: 1 Fl Oz (Pack of 1)
Love this product!! It has smoothed out my skin.
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Reviewed in the United States on May 20, 2026
★★★★★ 4
It Works
Size: 1 Fl Oz (Pack of 1)
I think this Product works and rates high on yuka.👍
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Reviewed in the United States on February 2, 2026
★★★★★ 5
make my dark spot lighter quickly
Size: 2 Fl Oz (Pack of 1)
I decided to order this product only after reading numerous reviews. I’ve already used it twice, and I feel that the dark spots on my face have faded significantly. Perhaps due to the demands of raising a child, my complexion had become quite dull; however, this product is incredibly gentle—it leaves my skin feeling neither greasy nor dry, and it doesn't have a strong scent. I think I will be repurchasing this indefinitely. I can't wait to see my skin continue to improve!
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Reviewed in the United States on April 5, 2026