SKU: 86471572270

N55 Air Intake For BMW E8X 135i and E9X 335i, Xi

Sale price$110.25 Regular price$122.50
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

N55 Air Intake For BMW E8X 135i and E9X 335i, XiThe ARM N55 Intake is a complete induction solution for the N55 found in the E9X chassis! From the turbo to the air filter the entire system has be redesigned to improve airflow and turbo spool, resulting in more power and better throttle response for your N55 powered BMW. The ARM N55 Intake shortens the induction pathway from the OEM setup by 68%. By moving the air filter to behind the headlight area, the path of airflow from the high flow

The ARM N55 Intake is a complete induction solution for the N55 found in the E9X chassis!  From the turbo to the air filter the entire system has be redesigned to improve airflow and turbo spool, resulting in more power and better throttle response for your N55 powered BMW.  The ARM N55 Intake shortens the induction pathway from the OEM setup by 68%.  By moving the air filter to behind the headlight area, the path of airflow from the high-flow performance filter to the turbo is greatly improved. 

HIGHLIGHTS

  • Gain up to 11whp
  • Precision Machined Turbo Inlet
  • Faster Turbo Spool
  • Increased Turbo Sound
  

 

To make this happen we completely redesigned the N55 turbo inlet.  The ARM N55 Inlet inserts into the OEM turbo with factory-like precision.  It then rapidly expands to 3" and this size is maintained throughout the rest of the intake all the way to the high-flow air filter.  While the OEM N55 inlet reduces to 46mm before the turbo inlet, the ARM N55 Inlet measures in at 75mm, a 63% increase over OEM. 



The ARM N55 Intake utilizes the largest possible air filter for the location behind the passenger side headlight.  This air filter measures a full 124 cubic inches of filter surface area, in an oval design to allow it to fit in-between the headlight housing and coolant expansion tank.



At the center of the ARM N55 Intake is the primary intake runner pipe which has several important design features.  Firstly, it is where the MAF sensor is relocated, utilizing a CNC machined MAF flange which provides a secure seal between the two components.  Secondly, the ARM N55 Intake includes a PCV port on the intake tube to reconnect the PCV line.  This allows for proper function of the OEM PCV system.   Lastly, the ARM N55 Intake is designed with an open-ended bracket to keep the filter stable and secure during aggressive driving.  



In order to relocate the filter to the front of the headlight we have included a MAF extension harness so there is no cutting or splicing of wires.  This harness simply clips into the original harness near the back of the engine and extends all the way to the new position for the MAF sensor on the precision machined ARM N55 MAF housing on the intake pipe.  



IN THE BOX

• ARM N55 Turbo Inlet Adapter
• ARM Intake Silicone Coupler
• ARM Intake Runner Pipe
• ARM High-Flow Air Filter
• ARM PCV Hose
• MAF Extension Harness
• Clamps

 

FITMENT GUIDE

Make Model Submodel Engine
BMW E82 135i N55 3.0L
BMW E88 135i N55 3.0L
BMW E82 135is N55 3.0L
BMW E90 335i N55 3.0L
BMW E90 335xi N55 3.0L
BMW E92 335i N55 3.0L
BMW E92 335xi N55 3.0L
BMW E93 335i 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.

This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.
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: 86471572270

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Rosie
West Palm Beach, US
★★★★★ 5
Cool Cuban Shirt
Size: Large, Color: Black Dark Gray
Looks nice and lightweight. I hand washed it and it turned out well. I used an iron to lightly press it. Overall the wrinkles were not bad. Would recommend
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Reviewed in the United States on May 26, 2026
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C. Clark
Omaha, US
★★★★★ 4
I just wish it wasn't vacuum packed.
Size: Large, Color: Black Light Brown
If the shirt wasn't vacuum packed to introduce bad creases/wrinkles, this would be a 5 star review. For the price, this is a nice and comfortable shirt. The thickness is really good for a polyester/spandex blend shirt; it's the right thickness for a summer shirt (because polyester doesn't breath at all). The rather small amount of spandex makes it just stretchy enough to give when moving. It wears a little like a fitted shirt, but it's not too tight at all for a bigger guys. It's not a loose fitting shirt, but it still feels like the correct size (my size was large). Note: This does have a bit of a V-Neck style, there's no button for the neck and the highest button is lower than most shirts. Unless you've a good iron with a steam feature, you're going to have a hard time safely getting rid of the wrinkles/creases from the vacuum packaging. This is a delicate fabric blend and high temperatures will permanently ruin it. I tried to quick wash and low temp dry in a machine with no results. Using a good iron on delicates/synthetics heat setting wasn't quite hot enough to undo the creases. Several steam blasts did wonders, but this was a time consuming process. You might get away using a drying machine at a higher heat for a short burst, but it's a risk. The stitching is good for the panels and arms. The different colors are different pieces of materials and not just dyes. The stitching at the bottom of the shirt, however, is jagged; not terrible, but it's a blemish.
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Reviewed in the United States on July 13, 2025
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Nancy Y
Belleville, US
★★★★★ 5
Vintage shirt goes great with vintage cars!
Size: Large, Color: Black Dark Gray
Loved it for my husband, we have vintage cars. It’s the perfect look, but I bought him 3 from this company and he chose 2 out of the three. Great shirts
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Reviewed in the United States on May 26, 2026
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Edward K
West Palm Beach, US
★★★★★ 5
excellent shirt
Size: Large, Color: Black White
perfect fit , it's a slim fit go get one size larger .
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Reviewed in the United States on June 2, 2026
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Aaron Samuel
Fort Morgan, US
★★★★★ 3
Nice product but size is not as expected
Size: 3X-Large, Color: Green White
This shirt is really nice and really stands out only downside is the size isn't as expected. I usually wear a 2xl and decided to go with a 3xl and it was still a bit too fitted for me liking..Disappointed I couldnt use it
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Reviewed in the United States on November 28, 2025

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