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Description
B58 Charge Pipe For Gen 1 BMW M240I, 340i, 440i, 540i, 640i, 740i, X3, X4 - ARM MotorsportsThe ARM B58 Charge Pipe is a bulletproof charge pipe replacement for the plastic OEM B58 charge pipe. The ARM B58 Charge Pipe increases the diameter over the OEM charge pipe, resulting in increased airflow from the turbo to the engine, and improved throttle response. Upgrading the charge pipe on your B58 is one of the basic steps in ensuring your B58 is protected against a charge pipe failure. In addition to making sure you have a reliable means of
The ARM B58 Charge Pipe is a bulletproof charge pipe replacement for the plastic OEM B58 charge pipe. The ARM B58 Charge Pipe increases the diameter over the OEM charge pipe, resulting in increased airflow from the turbo to the engine, and improved throttle response. Upgrading the charge pipe on your B58 is one of the basic steps in ensuring your B58 is protected against a charge pipe failure. In addition to making sure you have a reliable means of transporting the charge air from the turbo to the throttle body, the ARM B58 Charge Pipe comes with Tri-Port capability giving you 3 options for tapping into the charge pipe for meth, boost, or nitrous.
CONSTRUCTION
The ARM B58 Charge Pipe starts at the turbo with a CNC machined fitting which seals tightly at the turbocharger outlet port. It then transitions to the mandrel bent 2.5" piping for smooth transitions and to match the turbo outlet.
The 6 layer reinforced silicone coupler connects the 2.5" piping to the larger 3" upper charge pipe section. This runs all the way to the CNC 3-bolt throttle body flange. The silicone coupler is secured using our constant tension T-bolt clamps to ensure that the connection doesn't loosen over time. The upper charge pipe incorporates machined connections for the temperature and MAP sensors to ensure a precise fit.
The ARM B58 Charge Pipe incorporates Tri-Port 1/8" NPT bungs. These 3 bungs are useful for running a heavy dose of methanol injection, tapping in for secondary boost gauge, nitrous injection, or anything else your heart desires! More ports means more options, and with the ARM charge pipe you have 3.
IN THE BOX
The 6 layer reinforced silicone coupler connects the 2.5" piping to the larger 3" upper charge pipe section. This runs all the way to the CNC 3-bolt throttle body flange. The silicone coupler is secured using our constant tension T-bolt clamps to ensure that the connection doesn't loosen over time. The upper charge pipe incorporates machined connections for the temperature and MAP sensors to ensure a precise fit.
The ARM B58 Charge Pipe incorporates Tri-Port 1/8" NPT bungs. These 3 bungs are useful for running a heavy dose of methanol injection, tapping in for secondary boost gauge, nitrous injection, or anything else your heart desires! More ports means more options, and with the ARM charge pipe you have 3.
IN THE BOX
• ARM B58 Lower Charge Pipe
• ARM B58 Upper Charge Pipe
• ARM Silicone Coupler
• ARM Constant Tension T-Bolt Clamps
• ARM B58 Upper Charge Pipe
• ARM Silicone Coupler
• ARM Constant Tension T-Bolt Clamps
HIGHLIGHTS
• Increased 3" Diameter
• Tri-Port NPT
• CNC Machined Fittings
• Mandrel Bent T6061 Aluminum
• Tri-Port NPT
• CNC Machined Fittings
• Mandrel Bent T6061 Aluminum
FITMENT GUIDE
The ARM B58 Charge Pipe is for Gen 1 B58 engines only found in the vehicles below.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | F22 | M240i | B58 |
| BMW | F22 | M240i xDrive | B58 |
| BMW | F23 | M240i | B58 |
| BMW | F23 | M240i xDrive | B58 |
| BMW | F30 | 340i | B58 |
| BMW | F30 | 340i xDrive | B58 |
| BMW | F32 | 440i | B58 |
| BMW | F32 | 440i xDrive | B58 |
| BMW | F33 | 440i | B58 |
| BMW | F33 | 440i xDrive | B58 |
| BMW | F34 | 340i xDrive | B58 |
| BMW | F36 | 440i | B58 |
| BMW | F36 | 440i xDrive | B58 |
| BMW | G01 | X3 M40i | B58 |
| BMW | G02 | X4 M40i | B58 |
| BMW | G11 | 740i | B58 |
| BMW | G11 | 740i xDrive | B58 |
| BMW | G30 | 540i | B58 |
| BMW | G30 | 540i xDrive | B58 |
| BMW | G32 | 640i xDrive | B58 |
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:
- 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
4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
Very nice but expensive
Size: Queen Size (Pack of 2)
I love these cases, they didn't let out as much air as I had hoped for out the sides so I only zip it up half way so my pillow stays squishy and moldable and not partially filled with air which changes the feel of your pillow. Other then that they are great, they are very soft and quite, there is no noise whatsoever and there is some thickness to it adding a little more softness to your pillow. I ended up buying a second set. I just wish it had a little more airflow through the sides so I didn't have to leave it unzipped, that kind of defeats the purpose. I also think they are a little more expensive then they should be.
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Reviewed in the United States on February 2, 2026
★★★★★ 5
Does not change the pillows effectiveness at all.
Size: King Size (Pack of 2)
As of right now, I have not noticed anything with these covers that would significantly alter the way the pillows feel. I'm greatful that they are not noisy as most other covers are. I also appreciate that they have very much the same feel as the covers that come on the pillows. One thing I can say so far with confidence is that even though this is an additional layer to my pillows, the original feeling, specially with the Eden cool+, has been the same in terms of coolness and breathability.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
SUPER SOFT - GREAT QUALITY!
Size: Crescent Queen
This crescent pillow protector is more than I expected, as far as softness and just the overall quality of it. I wish my PILLOW was as nice as this protector! Definitely recommend.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Exactly as described
Size: Crescent Queen
This pillow cover is everything they said it would be. Comfortable, no crinkle sound. Fits the pillow like a glove. I highly recommend.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Coop Home Goods Eden Bed Pillow Queen Size
Team Name: Eden, Size: Queen, Color: Classic
I am very satisfied with the Coop Eden Bed Pillow.
It is clearly a high-quality product that is well worth the investment.
Here are a few reasons why I highly recommend it:
Fast Shipping & Great Packaging: The pillow arrived very quickly. It was packed beautifully in a box that was both aesthetic and very functional.
Initial Scent , There was a slight 'new pillow' scent upon opening, which is totally normal. I let it air out for a few hours and it was completely gone.
Fully Customizable Comfort: The pillow itself is incredibly comfortable and looks great. The best part is the ability to add or remove fill to reach your exact preferred loft. It even comes with an extra bag of fill, so you can make it firmer or softer depending on your needs. Being able to determine the exact volume is a game-changer.
Easy Maintenance: It comes with a lovely outer cover that is removable and washable, which is a fantastic and practical feature.
Overall, you can really feel the quality of this pillow. If you are looking for a customizable, premium sleeping experience, this is definitely the one to get!
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Reviewed in the United States on May 3, 2026