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PMAS HPX-N1

HPX-N1 Slot-Style Mass Air Flow Sensor

$240.90 $218.00 Save $22.90

SKU: PMAS-HPX-N1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The PMAS HPX-N1 is a slot-style Mass Air Flow (MAF) sensor designed for smaller displacement naturally aspirated engines under 5 liters. This sensor is engineered to prevent pegging and can support over 800 horsepower when installed in a 3-inch housing, and over 900 horsepower in a 3.5-inch housing. Its updated curve ensures perfect idle resolution even on vehicles making under 300 horsepower.
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The PMAS HPX-N1 is a slot-style Mass Air Flow (MAF) sensor engineered for smaller displacement naturally aspirated engines (under 5.0L). It offers impressive performance capabilities, supporting over 800 horsepower in a 3-inch housing and exceeding 900 horsepower in a 3.5-inch housing. The HPX-N1 features an updated sensor curve that maintains perfect idle resolution, making it suitable even for vehicles producing under 300 horsepower. This versatile sensor can be installed in housings ranging from 2 to over 5 inches in diameter and is compatible with both blow-through and draw-through configurations. It is designed for use with any 0-5 volt MAF system, though it requires computer tuning for proper operation. A specific 05-10 Ford MAF connector (PIG-V) is utilized, and plug-and-play harness adapters are available separately. A free transfer function generating software tool is also available for download. The PMAS HPX-N1 comes with a limited lifetime warranty and is described by the manufacturer as the last mass airflow sensor you will ever need to buy.

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

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Specifications

BrandPMAS HPX-N1
Part NumberPMAS-HPX-N1
CategoryAir and Fuel
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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.

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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.

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