ARM Motorsport N54 Inlets - E90/E92 3-Series | E82 1-Series

Regular price €337,95
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• Gain up to +60whp/60wtq
• Faster Turbo Spool
• Increased Turbo Volume 


The ARM Motorsports N54 Inlets are the ultimate relocated inlet system for your N54.  Relocating the inlets on your N54 with the ARM Inlets increase the power and torque of your N54 up to 60whp/60wtq. Expect improved turbo spool, faster peak boost, and more volume from the turbochargers on your N54.  If you're looking to max out your stock or upgraded twin turbochargers these are a must!

n54 inlets

The stock N54 inlets are narrow and flat, greatly restricting airflow to the turbochargers and handicapping their ability to spool quickly and hit target boost. The stock inlets connect from turbos on the passenger side of the engine to the airbox or upgraded intake on the driver-side, essentially "hugging" the engine.  The stock inlet for the rear turbo wraps behind the engine while the stock front inlet wraps around the front of the engine where they come to meet on the driver-side and connect to either the stock airbox or upgraded intake, whichever you have your N54 equipped with. 

N54 Inlets stock vs relocated


The ARM N54 Relocated Inlets are constructed of high-temperature steel-reinforced silicone and move the intake filters for the turbochargers from the driver-side of the engine over to the passenger-side, reducing the length the intake air needs to travel significantly.

One of the greatest challenges when upgrading to relocated inlets on your N54 is mitigating the heat of the air induced by the turbos.  With the inlets relocated to the passenger-side the filters are closer to the turbochargers where temperatures are hotter. 
The ARM N54 Inlets come with a manifold heat shield which serves to help keep heat down near the turbos and away from the inlet filters.  It also assists with keeping heat away from the inlet tubes themselves. 

In addition, the ARM Inlets come with an air filter heat shield which assists in keeping the cooler air near the filters separate from hotter air coming from the engine adjacent to it.

The air filters on the ARM Inlets are secured in place with a filter bracket which prevents filters and inlets themselves from bouncing around during acceleration, braking, and cornering.  Also included with the ARM Inlets is a support bracket for the boost solenoids.  This keeps them locked into place during extreme driving.  

To help make installation easy, relocation brackets for the coolant reservoir and power steering pump reservoir are included with the ARM Inlets.  


• ARM Relocated Inlets
• Manifold Heat Shield
• Air Filter Heat Shield
• Coolant Reservoir Relocation Brackets
• Power Steering Reservoir Relocation Bracket
• Boost Solenoid Bracket
• Clamps


The ARM inlets currently only fit the following Left-Hand-Drive vehicles.

Make Chassis Model Engine
BMW E82 135i N54 3.0L
BMW E90 335i N54 3.0L
BMW E90 335xi N54 3.0L
BMW E92 335i N54 3.0L
BMW E92 335xi N54 3.0L
BMW E93 335i N54 3.0L


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.

Please contact us via the contact page form to start a return or exchange. The return/exchange process must be started within 1 week of delivery, after 1 week we will not be able to issue a refund/exchange. A 20% restocking fee will be applied to any return once the order has been shipped. For any questions regarding returns or exchanges feel free to contact us at or reach out to us via the contact form and we would be happy to help.

You can find additional details on our return and exchange policy here.




Horizon Motorsport has one goal: to make our clients happy. We aim to provide the highest level of customer service and the highest caliber parts, all at the most competitive prices. Have a question or concern about a product we sell? Send us an email at


Every piece of carbon fiber that leaves our location in Los Angeles, CA is quality checked extensively prior to shipment. Every piece is backed up by our fitment and finish guarantee.


At Horizon Motorsport our mission is to provide unparalleled customer service. As a small business we pride ourselves on creating long lasting relationships with our customers who know that they can count on us for any of their BMW needs.


Horizon Motorsport was founded in 2019 in Los Angeles, CA by fellow BMW enthusiasts. We have experience with nearly all makes and models and have been actively involved in the Southern California BMW scene for over 3 years. Because of our unique insight into the BMW community, we choose to carry only the highest quality parts from the highest quality brands on the market.