SKU: 34553040407

N55 3.0L Intercooler Hose Upgrade For BMW M235i, 335i, 435i, ActiveHybrid 3 - ARM Motorsports

Sale price$87.30 Regular price$97.00
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

N55 3.0L Intercooler Hose Upgrade For BMW M235i, 335i, 435i, ActiveHybrid 3 - ARM MotorsportsThe ARM Motorsports F3X N55 Hose Upgrade is designed to work seamlessly for the ARM F3X FMIC Kit paired with ARM N55 Charge Pipe and ARM N55 Turbo Outlet Pipe upgrades. The ARM N55 Hose Upgrade is used to improve airflow by eliminating the OEM style connections from the FMIC to the Charge Pipe and Turbo Outlet Pipe, and reducing the overall amount of transitions of the charge air. The OEM style connections are prone to leaking and can be difficult to

The ARM Motorsports F3X N55 Hose Upgrade is designed to work seamlessly for the ARM F3X FMIC Kit paired with ARM N55 Charge Pipe and ARM N55 Turbo Outlet Pipe upgrades.

The ARM N55 Hose Upgrade is used to improve airflow by eliminating the OEM style connections from the FMIC to the Charge Pipe and Turbo Outlet Pipe, and reducing the overall amount of transitions of the charge-air.  The OEM style connections are prone to leaking and can be difficult to connect properly.  The ARM F3X Hose Upgrade converts the OEM style connections to a more secure hose-to-bead connection for a leak-free seal.  

The ARM F3X N55 Hose Upgrade reduces the overall amount of connections needed for the charge-air piping to only 4, as opposed to the standard 10.  This is beneficial because each connection can create turbulence in airflow, therefore the less connections you have in your charge-air system, the less opportunities for turbulence in your N55's charge-air.  

The ARM F3X N55 Hose Upgrade replaces the second half of the turbo outlet pipe and OEM connector and coupler on the hot side.  On the cold side it also replaces the OEM connector and coupler, along with the lower section of the charge pipe. 

Below you can see how the ARM Hose Upgrade reduces the connections on this N55 RWD Charge Pipe Setup from 5 to only 2, eliminating 3 or 60% of the connections from the standard setup. 

HIGHLIGHTS

  • Eliminates OEM Style Connections
  • Improves Airflow
  • 6-Layer Reinforced High-Temp Silicone
  • Handles High Boost
  • Leak-Free Seals

Similarly, the ARM Hose Upgrade reduces the connections on this N55 Turbo Outlet Pipe setup from 5 to 2 as well.  The removal of these extra connections improves airflow by reducing turbulence.  

 The ARM F3X N55 Hose Upgrade utilizes 6 layer reinforced high-temperature silicone for durability and to maintain its structure for high boost applications.  Our silicone hoses have been pressure tested to withstand over 50psi, enough for even the most demanding N55 builds. 

Each hose is sized to 2.5" inside diameter to allow for proper fitment to the ARM N55 Turbo Outlet Pipe and Turbo Outlet Pipe.  To secure the N55 Hose Upgrade are four constant-tension T-Bolt Clamps.  These clamps will not loosen over time and ensure that they keep the original torque spec that you tighten them to.
 

IN THE BOX

• ARM F3X Hose Upgrade
• 4x T-Bolt Clamps
 

FITMENT GUIDE


Make Chassis Model Engine
BMW F22 M235i N55 3.0L
BMW F22 M235i xDrive N55 3.0L
BMW F23 M235i N55 3.0L
BMW F23 M235i xDrive N55 3.0L
BMW F30 335i N55 3.0L
BMW F30 335i xDrive N55 3.0L
BMW F30 ActiveHybrid 3 N55 3.0L
BMW F32 435i N55 3.0L
BMW F32 435i xDrive N55 3.0L
BMW F33 435i N55 3.0L
BMW F33 435i xDrive N55 3.0L
BMW F34 335i xDrive N55 3.0L
BMW F36 435i N55 3.0L
BMW F36 435i xDrive N55 3.0L

ARM MOTORSPORTS LIFETIME WARRANTY

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.
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: 34553040407

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4.1 ★★★★★
Based on 15 reviews
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Verified Purchase
Janola
Lake Worth, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
R
Verified Purchase
Reviewer
Los Angeles, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
B
Verified Purchase
Brittany
Louisville, US
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Janessa L.
Belleville, US
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.) They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo. Just a heads up, they are on the thin side and just a bit see through in the rear. I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025
P
Verified Purchase
Pistol King
Whiting, US
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place. I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item. Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025

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