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Heating and Cooling› Oil and Fluid Coolers

Mishimoto

Performance Air Intake

$439.00 $348.18 Save $90.82

SKU: MMAI-CIV-17SI

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mishimoto Performance Air Intake is a direct-fit modification for the 2017-2020 Honda Civic Si.

This intake features a steel wire-reinforced silicone intake arm that improves airflow and helps maintain consistent intake air temperatures. The powder-coated steel airbox protects the high-performance air filter from engine bay heat and helps prevent hydrolock. The MAF housing includes a venturi-style inlet for improved airflow.
Show original supplier description
The Mishimoto Performance Air Intake is engineered specifically for the turbocharged 2017-2020 Honda Civic Si, offering a direct-fit modification to enhance engine performance and throttle response. This intake system is designed to be 37% less restrictive than the stock system, improving airflow. It features a steel wire-reinforced silicone intake arm for better airflow and temperature control, and a powder-coated black steel airbox that shields the Mishimoto High-Flow Oiled Air Filter from engine bay heat and potential hydrolock. The MAF housing is equipped with a venturi-style inlet for optimized airflow. Installation is rated as easy, and the unit functions perfectly with the stock tune. The intake also produces a noticeably aggressive tone under acceleration and boost. This product is CARB EO# D-759-25 and comes with a Mishimoto 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

BrandMishimoto
Part NumberMMAI-CIV-17SI
CategoryHeating and Cooling

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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.

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