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AEM 4in Universal Cold Air Intake System

AEM Induction · New

AEM 4in Universal Cold Air Intake System

MPN 21-5011 · Store SKU aem21-5011

$419.99
IN STOCK7 ready to ship

Supplier stock checked 11/7/2026, 11:10:24 AM UTC. Adding a part does not reserve it.

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Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

AEM's 21-5011 is ideal for engine swaps when a custom intake is required. It comes with an AEM Dryflow Air Filter, three 4 inch diameter aluminum tube bends, one straight 36 inch long, 4 inch diameter tube, seven couplers, a weld-on mass air flow sensor pad, two brackets and hardware needed to custom build an air intake. AEM's 21-5011 is ideal for engine swaps when a 4 inch diameter custom air intake is required. Universal Cold Air Intake System 4in. UNIVERSAL CUSTOM ASSEMBLY

Manufacturer fitment & guides

Check 21-5011 against the manufacturer’s application information below.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
  • Emissions acknowledgement required before purchase.
  • California Proposition 65: Y

Manufacturer documents

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