SKU: 22009852366

AMS Performance Intake Manifold - BMW / G20 / G21 / M340i / B58

Sale price$1882.35 Regular price$2091.50
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

AMS Performance Intake Manifold - BMW / G20 / G21 / M340i / B58As horsepower numbers rise, so do temperatures through the BMW B58s intercooling system. In order to cool down that hot intake charge air coming from the turbocharger, you need a highly efficient heat exchange process which is where the AMS Performance BMW B58 Intake Manifold comes in. With our unique parallel twin core design, we are able to route coolant flow in the most efficient way possible giving us unparalleled cooling efficiency over the


As horsepower numbers rise, so do temperatures through the BMW B58’s intercooling system. In order to cool down that hot intake charge air coming from the turbocharger, you need a highly efficient heat exchange process which is where the AMS Performance BMW B58 Intake Manifold comes in. With our unique parallel twin core design, we are able to route coolant flow in the most efficient way possible giving us unparalleled cooling efficiency over the competition. The AMS Performance BMW B58 Intake Manifold also provides for an auxiliary port fuel injection solution by way of its flush mounted -8AN fuel rail, giving the atomized fuel a nearly unimpeded path to the combustion chamber. Our superior engineering yields superior results.

  • 1250+ HP RATED PARALLEL AIR-TO-WATER INTERCOOLER CORES FOR SUPERIOR COOLING
  • AUXILIARY PORT FUEL RAIL WITH -8AN SIDE PORTS FOR EXPANDED FUELING OPTIONS
  • COMPUTATIONAL FLUID DYNAMICS (CFD) VERIFIED DESIGN FOR EVEN AIRFLOW DISTRIBUTION
  • PROPERLY ANGLED PORT INJECTION FOR IMPROVED FUEL ATOMIZATION
  • 135% LARGER CORE AREA COMPARED TO OEM
  • THREE (3) EXTRA -4AN ORB PORTS LOCATED ON PLENUM FOR VACUUM SOURCE POINTS
  • INCLUDES ALL ANCILLARY COMPONENTS, INCLUDING ALL HARDWARE, LINES, AND FITTINGS

 
ENGINEERED TO WIN

The AMS Snailworks© Engineering Team has designed the AMS Performance BMW B58 Intake Manifold to be a direct bolt-in install without hacking up your prized possession. The manifold is fully compatible with A/C, power steering, oil filter cap, and all other factory options, and is easily reversible back to stock with a few inexpensive replacement parts. The design of the new AMS Performance BMW B58 Intake Manifold positions it to be the best performing, highest quality, and easiest to install manifold on the market.

Our AMS Snailworks© Engineering Team has spent hundreds of R&D hours refining the AMS Performance BMW B58 Intake Manifold to be as efficient and effective as possible. Utilizing Computation Fluid Dynamics (CFD) analysis software, our team has been able to verify the geometry of our A356 T6 cast aluminum plenum and runners to optimize mass flow rate distribution to each cylinder. By taking this additional design step, our engineers have gone the extra mile and allowed for an equalization of airflow to within .5% to each individual cylinder port!


PROPERLY IMPLEMENTED PORT FUEL INJECTION

The 3.0L B58 engine found in various modern BMW models is a German engineering marvel. Unfortunately, the factory direct injection system is not conducive to making high horsepower or using ethanol flex fuel, which has led many owners to install port fuel injector spacers sandwiched between the cylinder head and factory intake manifold. During the R&D process of the AMS Performance BMW B58 Intake Manifold, our team knew they wanted to incorporate an optimally designed secondary port fuel injection solution as an option for customers.

By moving the injector ports onto the manifold runners themselves, we are able to properly angle injector nozzles directly at the intake valve and combustion chamber instead of at the wall of the intake runners where fuel can puddle. Our team went one step further with this concept by flush mounting the -8AN fuel rail to the manifold and pocketing the runners to allow the injectors to have an even more direct path to spray perfectly atomized fuel to the engine for maximum combustion efficiency.

 

PARALLEL SPLIT CORE DESIGN FOR OPTIMIZED COOLANT FLOW

The most significant design element of the AMS Performance BMW B58 Intake Manifold is our parallel split core design that allows us to route coolant from the middle of the unit instead of from one end to the other. This coolant flow routing reduces water pressure drop and increases flow rate at a given head pressure, meaning coolant can easily move through the system and expel heat efficiently. This split coolant flow design delivers consistently cool water to every cylinder by matching the coolest water (fresh from the heat exchanger), with the coolest air (furthest point through the intercooler), to maximize heat transfer across the length of the cores.

The 1250+ HP rated twin cores themselves have also been optimized for not just coolant flow, but for airflow throughput as well as reduced pressure drop. The AMS Snailworks© Engineering Team has struck a fine balance between airflow to the engine, and allowing the heat exchange process to cool that air. This is done by optimizing the dimensions of our proprietary parallel cores to allow for intercooler design elements like our custom spec fin densities on both coolant and air sides, fin height, and water passage size.

 

INCLUDES

  • AMS Performance Intake Manifold w/ Parallel Air-to-Water Intercooler Cores
  • AMS Performance Auxiliary Fuel Rail and Port Plugs (Injectors Available Separately)
  • AMS Performance Ancillary Components — Including all Hardware, Lines, and Fittings

CONFIRMED FITMENT

  • 2019+ BMW M340i – w/ B58 3.0L Turbo Engine (Incl. G20 and G21 chassis)

NOTES

  • Fuel rail is designed for Bosch injectors such as Injector Dynamics 1050.34.14.14.6. Other Bosch injectors may be compatible with 14mm bore lower and upper o-rings and no top cap.
  • Does not fit with OEM engine cover.
  • Designed for use with OEM oil filter cap. Aftermarket oil filter cap fitment not guaranteed.

 

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: 22009852366

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4.4 ★★★★★
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HappyHeathen
Birmingham, US
★★★★★ 4
Good quality and adjustable comfort
Size: Queen (Adjustable Foam)
Well-constructed and packed with lots of foam pieces. As received, the pillow is firm and well stuffed. I would up removing a good amount of stuffing for a custom fit -- as recommended by the pillow maker. Now, the pillow is extremely comfortable. Due to being able to customize the fill and making this pillow comfortable to my sleeping style, I am happy with this purchase and would recommend its purchase.
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Reviewed in the United States on April 9, 2026
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Hg
Natrona Heights, US
★★★★★ 5
Love this pillow it is amazing
Size: Queen (Adjustable Foam)
Excellent pillow very comfortable
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Reviewed in the United States on June 1, 2026
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Patti Ann
Whiting, US
★★★★★ 5
I like it
Size: Queen (Adjustable Foam)
I have been trying to find the "perfect" pillow. I am not sure if this would count as the perfect pillow, but it is better than my previous pillow. I have not been waking up with a stiff neck and soreness across my shoulders. It is more firm than I thought it would be. But so far, so good.
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Reviewed in the United States on December 25, 2025
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Dora F
Cuba, US
★★★★★ 3
Decent firm pillow
Size: Queen (Adjustable Foam)
I've been using the shredded foam pillow since January. At first it was too packed/firm, so I had to remove some of the stuffing from mine. When fully full, it is a chore to get it in/out of our standard pillow cases. Over time, the pillow has developed a divot from where my head rests the most, so I'll need to fully remove/fluff/reinsert the foam to get it back into shape. Overall, I find the comfort of this pillow just okay. It absorbs your head heat even in the winter, so if you prefer a cool pillow, I don't recommend it. It does seem to be a good quality pillow otherwise. I expect I'll be able to use this one for a few years without it falling apart. It doesn't smell bad either. My husband really likes the pillow, but I've also seen him sleep comfortably on very old pillows that have turned into pancakes... so do with that information what you will.
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Reviewed in the United States on June 25, 2025
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Steph
Phoenix, US
★★★★★ 5
Best Pillow ever
Size: Queen (Adjustable Foam)
I am in love with this pillow. I have such a hard time finding a pillow that works for me because they are usually to big or too flat. This pillow is right where I need it to be. It is soooo comfortable. My neck has no pain anymore. The quality is high as well. No bad stitching. The stuffing is evenly distributed and the pillow is so soft sometimes I don't even want to use a pillow case but I do haha. Definitely worth the money.
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Reviewed in the United States on November 6, 2025

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