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Air and Fuel› Air Cleaners, Filters, Intakes and Components

STILLEN

Hi-Flow Air Intake Kit

$550.11 $470.29 Save $79.82

SKU: 402883

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

Easy — 1–2 hours

Overview

The STILLEN Hi-Flow Air Intake Kit is designed to enhance the performance of the 2018-2021 Kia Stinger GT's 3.3L Turbo V6 engine. It features a urethane heat shield for superior thermal insulation, ensuring the engine receives the coolest air charge possible. This leads to consistent power and response.

Dyno testing has shown gains of +18HP and +21TQ. The kit replaces the restrictive factory paper filter, air box, and housing with an enclosed urethane air box. Installation is straightforward and can be completed in under 60 minutes with basic tools.
Show original supplier description
The STILLEN Hi-Flow Air Intake Kit is engineered to optimize airflow for the 2018-2021 Kia Stinger GT's 3.3L Turbo V6 engine. By refining the factory intake design, this system provides a free-flowing path for air while mitigating the 'hot air intake' issues often associated with unshielded inlets. The kit features a durable urethane heat shield, which offers superior thermal insulation to ensure the engine consistently receives the coolest possible air charge, thereby maximizing power and throttle response. Performance gains are substantial, with dyno-testing demonstrating an increase of +18 horsepower to the wheels (WHP) and +21 torque to the wheels (WTQ). This intake system replaces the restrictive factory paper filter, air box, and housing with a custom-designed, enclosed urethane air box. It can typically be installed in less than 60 minutes using basic hand tools, making it a feasible upgrade for DIY enthusiasts. This intake aims to provide a more intoxicating induction note under throttle, adding an audible performance enhancement to the driving experience.

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

BrandSTILLEN
Part Number402883
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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