Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Air and Fuel› Intake Manifolds and Components

ARM Motorsports

N54 Intake Manifold

Name: N54 Intake Manifold
Brand: ARM Motorsports
SKU: N54MAN

$967.09

SKU: N54MAN

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ARM Motorsports N54 Intake Manifold is a direct-fit replacement for the OEM N54 intake manifold. Constructed from high-strength T6061 aluminum, it is designed to withstand extreme boost and high-horsepower builds, replacing the restrictive plastic factory unit.

Show original supplier description

The ARM N54 Intake Manifold is engineered to replace the fragile OEM plastic intake manifold, offering a robust solution for high-horsepower N54 builds. Designed to support upwards of 400whp and beyond, this manifold addresses the airflow limitations of the stock unit. Its full aluminum construction, made from high-strength T6061 aluminum, ensures durability against extreme boost pressures, heat soak, and deformation. It significantly increases airflow through smooth, high-flow runners and an optimized plenum volume, leading to improved efficiency and enhanced top-end power. The manifold also features integrated top-mounted port injection bungs, enabling the addition of a secondary fueling system for configurations requiring full E85, methanol-free tuning, or large turbo upgrades, supporting reliable performance at 600+whp. For N54s not utilizing port injection, included block-off plugs ensure proper functionality. Further enhancing its utility, the manifold includes multiple expansion vacuum ports, providing convenient access for accessories such as blow-off valves, boost gauges, and Hobb’s switches without the need for drilling or T-fittings. The product comes complete with a fuel rail, block-off plates, various fittings, throttle body bolts, mounting hardware, and O-rings.

Vehicle Symptoms

Loss of power at high boost (400+ whp)
Rough idle after hard acceleration
Intake air temperature spikes during sustained boost
Visible crack or leak in plastic intake manifold
Misfire under load, especially at higher RPM

Relevant Conversations

N54 intake manifold upgrade for 500whp
N54 plastic manifold cracking symptoms
ARM Motorsports N54 intake manifold review
How to install N54 aluminum intake manifold
N54 intake manifold vs stock flow comparison
N54 boost leak from cracked intake manifold
N54 high intake temps after tuning
N54 intake manifold gasket replacement
N54 400whp bottleneck intake manifold
N54 rough idle after cold start intake leak

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	ARM Motorsports
Part Number	N54MAN
Category	Air and Fuel

Videos

ARM Motorsports N54 Relocated 2 inch Inlets SUPER DETAILED REVIEW

BMW 335i (N54) gets ARM Relocated Inlets & 3" Downpipes *Full Install & Review*

BMW 335i Modifications - Burger Motorsports N54 DCI Product Review!

BMW 335i (N54) gets ARM 7.5" Intercooler & Upgraded Turbo Outlets *Full Install & Review*

ARM Motorsports BMW N54 Charge Pipe Tial Q BOV DIY Install!

N54 BOV's: Tial vs HKS

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy