SKU: 96114456554

Sports Series Oil Cooler Upgrade Kit for the 2014-16 M135i/M235i N55 Engine

Sale price$402.75 Regular price$447.50
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Description

Sports Series Oil Cooler Upgrade Kit for the 2014-16 M135i/M235i N55 EngineTrack tested for over a year. Our Sports Series Oil Cooler Kit for the 2014 M135i & M235i (F20 F22) with the N55 Engine. Key Features: Made in the USA! Reduces the high oil temperatures that N55 engine produces which helps reduce oil breakdown, improving the longevity of your car! Large 9"x8"x2" (11"x8"x2" with end tanks) Oil Coolers. Factory stock oil cooler 8. 75"x4. 75"x1" Over 350% larger capacity than the factory oil cooler!!! Sports Oil Cooler

Track tested for over a year.  Our Sports Series Oil Cooler Kit for the 2014 M135i & M235i (F20/F22) with the N55 Engine.

Key Features:

  • Made in the USA!
  • Reduces the high oil temperatures that N55 engine produces which helps reduce oil breakdown, improving the longevity of your car!
  • Large 9"x8"x2" (11"x8"x2" with end tanks) Oil Coolers.  Factory stock oil cooler 8.75"x4.75"x1"
  • Over 350% larger capacity than the factory oil cooler!!!
  • Sports Oil Cooler has a total of 144 cubic inches of core!  Factory oil cooler has 41 cubic inches.
  • Available with no finish (silver) or Type III Hard Black Anodizing (for stealth). Hard anodizing helps improve durability of intercooler fins against damage from road debris (rocks).
  • Enclosed box with venting louvers - protects oil coolers from road debris without sacrificing airflow!
  • High Quality Goodrich AN Fittings in Black Anodize - NO China made fittings used here.
  • High End Goodrich Fittings and Stainless Steel braided Oil Lines
  • Retains the factory oil heatsink for additional cooling capacity
  • Optional Aluminum Shrouding to direct airflow through the oil coolers for improved efficiency.
  • Includes all hardware needed to install.  No need to go hunting for hardware to finish the installation.
  • Developed and tested on the racetrack!
  • Limited Lifetime Warranty.

It's well known that the N55 engines runs very hot.  Turbos that build a lot of heat and a small radiator play into why this engine runs so hot.  A quick look at your gauge cluster on your dash after a few minutes of "spirited" driving, you'll notice oil temperatures over 250 degrees.  Considering that most cars don't even exceed 230 degrees tells you quite a bit.  As oil temperatures get too high, thermal degradation occurs.  This is when the oil starts to lose viscosity due to heat and start to break down and becomes more susceptible to "shearing" or oil breakdown. An internal combustion engine like the N55 engine, imparts high shear forces on the motor oil, which is sandwiched between two rotating or sliding forces under load and heat.  "Shearing" is when the molecular structure is essentially torn apart by these mechanical shear forces.  Lower your operating oil temperature will greatly reduce this.  Thus, your motor oil is in better shape to protect the bearings in your car's engine, thus improving longevity.

The M235i/335i/435i/M2 comes from the factory with a small oil cooler with a core size of 8.75"x4.75"x1" (222mmx121mmx26mm) which comes out to 41 cubic inches of core.  The Sports Series Oil Cooler system features a large 11"x8"x2" (280mmx203mmx51mm) oil cooler with a core size of 9"x8"x2" (229mmx203mmx51mm).  The Sports Series Oil Cooler comes out to 144 cubic inches of core which is 3.5 times larger than the factory unit each! 

The Sports Series Oil Cooler mounts to its own box enclosure.  This style box was developed on our 135i Time Attack race car and is brought here to our new F30 applications.  Louvers on the backside of the box enclosure ensures airflow through the oil cooler while protecting the oil cooler from road debris, especially debris kicked up from the front tires.  During initial testing, our box enclosure had a big window (open hole) in the back for airflow.  However, throughout the race season, it took so much abuse from rocks, tire and other debris kicked up from the front tires that we had to replace the oil coolers on our Time Attack 135i.  Thus, instead of a big hole for airflow to flow through, we used louvers instead to protect the back side of the oil cooler.  This effectively solved the issue without any effect on performance.  Oil temperatures as well as oil temperature deltas stayed the same. 

The Sports Series Oil Cooler mounts to its own box enclosure.  This style box was developed on our 135i Time Attack race car and is brought here to our new F30 applications.  Louvers on the backside of the box enclosure ensures airflow through the oil cooler while protecting the oil cooler from road debris, especially debris kicked up from the front tires.  During initial testing, our box enclosure had a big window (open hole) in the back for airflow.  However, throughout the race season, it took so much abuse from rocks, tire and other debris kicked up from the front tires that we had to replace the oil coolers on our Time Attack 135i.  Thus, instead of a big hole for airflow to flow through, we used louvers instead to protect the back side of the oil cooler.  This effectively solved the issue without any effect on performance.  Oil temperatures as well as oil temperature deltas stayed the same. 

Everything needed to install is included with the kits.  No low quality, cheap fittings and lines made overseas used here.  High quality Goodrich anodized black AN fittings and high-end Goodrich Stainless Steel Braided Lines are used throughout the kit. 

Type III Hard Anodize Black Finish:

The oil coolers come standard with no finish (silver color).  Just like our intercoolers, we're now offering them with the Type III Hard Anodize Black for guys who want the stealthy look.  With the Type III Hard Anodized finish, it is very hard to tell there is an aftermarket oil cooler on the car. Another added benefit of the Type III Hard Anodizing is that it makes the oil cooler fins harder and stronger, which makes it less prone to getting bent/damaged from road debris like rocks etc... We opted for the Type III Hard Anodizing over the Type II color anodizing which is only aesthetics for this purpose only (even though it cost us considerably more to anodize Type III than Type II). We started using the Type III Hard Anodized Black finish on our rally car customer's FMICs years ago.  Rally cars go through tremendous amounts of abuse, and it was quite common to take hits on the intercooler from debris on the course.  In fact, after 1 event, we would often see a large portion of the intercooler fins bent (killing efficiency) and fixing them after each event was quite tedious.  After the Type III Hard Anodizing, we notice a big difference as there was considerably less damage.  Even after hits and even accidents, the FMIC could take more abuse than before.  Testing has shown no noticeable ill-effect from the Type III Hard Anodizing on performance (regular spray paint etc... has shown ill-effects on performance).  Eventually, we started utilizing the same Type III Hard Anodize Black on our street cars and FMIC applications.  It's only natural we would offer the same finish for our oil coolers.

Kit Options:

When the oil cooler box enclosures are used in conjunction with our optional ducting shroud kits, the oil cooler box enclosure actually seals and forces all the airflow captured by the ducting shrouds through the oil cooler cores.  Improves the oil cooler's effectiveness and efficiency.  The ducting shroud kits are available in aluminum.  These are model and bumper specific so make sure you order the correct shroud kit.

Region Spec:
US Spec M Sport cars come from the factory with an oil heatsink cooler.  These kits feature a 3 line design.  Non M Sport models as well as European/Asia Spec cars do not have the heatsink cooler and these kits have two oil lines in the kit.
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: 96114456554

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★★★★★ 5
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Reviewed in the United States on May 16, 2026
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Los Angeles, US
★★★★★ 5
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Color: Green, Size: Medium
Tried many, this pillow is perfect. Not too big, not too small. Soft yet supportive. It’s also well made and super comfy. Plus it packs up nicely. I’m a new Wise Owl convert, everything I’ve ordered so far has been excellent quality. Just wish they kept the colors consistent so it all matched (minor annoyance). You need this.
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Reviewed in the United States on May 22, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Comfy, soft, packable, and cool
Color: Green, Size: Small
I absolutely love this pillow. It's well constructed but not OVER constructed - it is soft, comfortable to my neck and head - very packable and stays pretty cool - like the 'other side' of the pillow. I also appreciate the stuff sack that Wise Owl sends with it. I was able to get this down into my right side of my Redwing 50 pocket. This thing fits everywhere and while some folks think its a luxury, when you get to be my age - comfort is something that you take for granted. I feel well rested after a night on this bad boy. Shape always fluffs back out. I think it's a great value at the price point it is at compared to other pillows in this range. Very very durable, like all Wise Owl products I own. Easily fits snugly into the bag, and can mold around you depending on how you want to adjust it. I don't use a sleeping pad, just this for my neck support and it really is worth every penny. Water resistance - I'm not sure as I've not had the opportunity to see it but I feel like with the material it is, water would probably bead off in light amounts.
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Reviewed in the United States on December 20, 2025
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Danny
Lake Worth, US
★★★★★ 4
It's comfy but not UL nor packs down well.
Color: Blue, Size: Medium
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Reviewed in the United States on January 28, 2025
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West Palm Beach, US
★★★★★ 5
Soft and Confortable
Color: Rose, Size: Medium
Excellent travel and camping pillow. Soft and confortable. My wife loves it.
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