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AEM 4-inch Universal Cold Air Intake System

AEM 4-inch Universal Cold Air Intake System

SKU:AEM21-5011

Regular price $586.00
Regular price Sale price $586.00
(Duties & import taxes included)
Import Duties & Taxes

The displayed price includes import duties and taxes. In principle, no additional payment is required upon delivery. If the shipping carrier nevertheless charges you import duties or taxes upon delivery, please pay the charges first. Shaft Shop will reimburse you for the amount paid.

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Shipping calculated at checkout.

In stock | Estimated delivery: 5–8 business days

International shipping rates are calculated at checkout.
Authorized U.S. Suppliers Sourced through authorized channels
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Japanese & English Support Contact us about fitment and delivery
FAQs: Duties, Delivery & Fitment → View full details
AEM's 21-5011 is ideal for engine swaps that require a custom intake. It comes with an AEM Dryflow air filter, three 4-inch (approx. 102mm) diameter aluminum tube bends, one 36-inch (approx. 914mm) straight tube, seven couplers, one weld-on mass air flow sensor pad, two brackets, and the hardware necessary to assemble a custom air intake.


Before Ordering

〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.

Compatibility Check
Our entire product database is based on North American vehicles (USDM), so please check whether the product can be installed on a Japanese model vehicle (JDM) before ordering. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model using the tabs on our top page, it does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us if you have any questions before ordering.

○ Regarding Delivery
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually by email.

All products are generally shipped internationally from our US warehouse. Unlike domestic shipping within Japan, international delivery takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Please note that all products are transported by air. They are not shipped by sea freight.

○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Basically, all products we handle are designed and manufactured outside of Japan. Please understand that they are not adapted to the "Japanese Vehicle Inspection System" in any way, and we cannot provide strength evaluation documents for Japanese vehicle inspections. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.

○ Regarding Warranty
Please check the contents immediately upon arrival. As all products are shipped internationally from outside Japan, there may be shipping damage to the packaging boxes or products. Please understand that for products with shipping damage, defective products, or products different from what was ordered, we will only handle returns, refunds, or exchanges if you contact us within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through our company." Please note that we do not provide support through other companies or distributors located in Japan.