AEM Cold Air Intake System – 21-721C for MINI Cooper S & JCW (N18 / R56)

High‑Flow Design | Optimised Airflow | OEM Scoop Integration

Product Description:

The AEM 21‑721C Cold Air Intake is a premium performance upgrade for 2011–2013 MINI Cooper S, JCW, GP2 and related R56 N18‑engined models. By replacing the restrictive stock intake and converting the fake OEM hood scoop into a functional cold‑air duct, this system improves throttle response, torque, and overall drivability.

Developed using computational fluid dynamics (CFD) and validated with flow bench testing, the 21‑721C is engineered to deliver consistent power gains while ensuring long‑term durability with its high‑temperature materials and washable Dryflow™ filter.

Key Features:

• Direct‑fit design for N18 engines

• Converts OEM hood scoop into a functional air duct

• AEM Dryflow™ oil‑free filter – washable and reusable

• Optimised airbox and couplers for smooth airflow and consistent performance

• Includes AEM turbo heat shield for added thermal protection

• Backed by AEM’s Lifetime Limited Warranty

What’s Included:

• 1x AEM Dryflow™ high‑flow filter (oil‑free)

• 1x Custom AEM airbox

• 1x AEM bonnet air duct

• 1x Silicone hose connection

• 1x AEM turbo heat shield

• Mounting hardware & full instructions

⚠️ Important Notes:

• ✅ Designed for MINI R56 N18 engines (2011–2013) – Cooper S, Clubman S, Roadster S, Coupe S, JCW & GP2

• ✅ Fits N18 engines built after March 2012. Cars built before March 2012 require the updated intake pipe from a later Cooper S.

• ❌ Only the AEM strut brace is compatible with this intake – other braces will foul the airbox.

• 📷 New versions no longer include the filter reminder/monitor as shown in older photos.

Performance Gains (Based on AEM Testing):

• +6 hp @ 5,650 rpm

• +9 ft‑lbs torque @ 2,710 rpm

(Horsepower and torque gains may vary by vehicle and modifications.)

Installation Instructions