AEM 21-871C Cold Air Intake for 2015-2020 Acura TLX 3.5L V6

Vehicle Fitment

• 2015-2020 Acura TLX (3.5L V6 gasoline; Base & SH-AWD trims)

Features

• Performance cold air intake system tuned and dyno-tested for Acura TLX 3.5L V6
• Oversized AEM Dryflow synthetic washable air filter - oil-free, reusable up to ~100,000 mi
• Mandrel-bent aluminum intake tube with gunmetal gray powder-coat finish
• Heat shield protects filter and reduces intake air temps for denser air charge
• Designed to integrate factory emissions controls including MAF and breather tube
• Improves throttle response, engine sound, and overall performance vs stock intake
• Boosts horsepower and torque by reducing intake restriction
• Backed by AEM limited lifetime manufacturer warranty

Specifications

• Part number: AEM 21-871C
• Application: Cold air intake system
• Fitment years: 2015-2020
• Vehicle: Acura TLX
• Engine: 3.5 L V6 gasoline
• Estimated horsepower gain: ~8.8 HP @ ~6000 RPM
• Replacement filter: AEM 21-204DK
• Air filter color: red
• Air filter material: non-woven synthetic Dryflow
• Clamps included: 3 stainless steel worm-gear clamps
• Couplers included: 1
• Intake pipe material: aluminum, gunmetal gray finish
• Street legal status: not legal for sale or use in California or states adopting California emission standards
• Warranty: limited lifetime

Included Components

• 1x AEM Dryflow synthetic washable air filter
• 1x Mandrel-bent aluminum intake tube (gunmetal gray)
• 1x Heat shield
• 3x Stainless steel worm-gear clamps
• 1x Coupler
• Mounting hardware kit
• Installation instructions

Product Description

The AEM 21-871C Cold Air Intake System is engineered specifically for **2015-2020 Acura TLX models** equipped with the 3.5 L V6 engine. This high-flow intake replaces the restrictive factory air box and intake tubing with a performance-tuned system designed to improve airflow into the engine, yielding better throttle response, enhanced engine sound, and measurable performance gains. The oversized Dryflow synthetic air filter uses oil-free media that is washable and reusable, providing up to approximately **100,000 miles of service** between cleanings under typical conditions.

Constructed with mandrel-bent aluminum and finished in gunmetal gray, the intake tube works with the included heat shield to draw cooler air from the factory air box area for improved combustion efficiency. Installation is straightforward with the provided clamps, coupler, and hardware, and the system accommodates the factory mass airflow sensor and breather tube connections for seamless integration. Dyno-tested gains of approximately **8.8 HP** help enhance acceleration and overall driving experience. This intake is **not legal for sale or use in California** or other states adopting California emission standards - check local emissions compliance before purchase.