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Air and Fuel› Fuel Injection Systems and Components - Electronic

MAPerformance

Port Injection Fuel Rail Kit

$277.77 $249.99 Save $27.78

SKU: HDAX-PIA

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

Easy — 1–2 hours

Overview

The MAPerformance Port Injection Fuel Rail Kit is a direct bolt-on upgrade for your 2016-2021 Honda Civic X 1.5T and 2017+ Civic X Si.

This kit adds supplementary fuel capacity for making more power, complementing existing direct injection systems. It is constructed from CNC 6160 billet with integrated hardware mounting for a simple installation using standard hand tools. The injector angles are optimized for the best spray pattern into the intake tract.
Show original supplier description
The MAPerformance Port Injection Fuel Rail Kit is engineered to provide additional fuel capacity for high-performance applications on the 2016-2021 Honda Civic X 1.5T and 2017+ Honda Civic X Si models. Designed as a direct bolt-on spacer and fuel rail system, this kit enhances fueling capabilities without replacing the factory direct injection system. It is constructed from a CNC 6160 billet spacer, featuring adjustable height to accommodate both 48mm and 60mm injector options, utilizing a 14mm O-ring size. The integrated hardware mounting ensures a straightforward and clean installation, which can be performed with standard hand tools. The injector angles have been optimized to achieve the best possible spray pattern into the intake tract for uniform fuel dispersion. Injectors are sold separately and will need to be purchased additionally. The kit comes with necessary hardware, including bolts for the spacer and head mounting, as well as O-rings and AN fittings. The MAPerformance Port Injection Fuel Rail Kit is backed by a MAP Limited Lifetime Warranty.

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

BrandMAPerformance
Part NumberHDAX-PIA
CategoryAir and Fuel
5,000+ Trusted brands
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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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