Cold Air Intake for Kia Sorento (2003-2006) 3.5L Engine

Maximize Airflow and Throttle Response for your 2003-2006 Kia Sorento 3.5L Sigma V6

Who It’s For: Designed specifically for 2003-2006 Kia Sorento owners running the rugged 3.5L Sigma V6 engine who want to reclaim lost power and improve towing or highway passing capability.

The Problem: The factory air box on the Sigma V6 is a major bottleneck. It uses restrictive corrugated plastic tubing and a narrow intake tract designed more for noise suppression than performance. This creates air turbulence and allows for significant heat soak, which stifles the 3.5L engine’s ability to breathe during acceleration.

The Solution: This high-flow intake system replaces the restrictive stock assembly with a mandrel-bent T-304 polished aluminum pipe. By smoothing the path to the throttle body, we corrected the factory design flaws of the Sigma V6, delivering reliable performance and a much more aggressive engine note under load.

Why This is the Ultimate Upgrade

• Dyno-Proven Gains: Engineered to provide a 7-10% increase in Horsepower and a 6-8% bump in Torque by optimizing the air-to-fuel ratio with cooler, denser air.
• Premium Construction: The T-304 aluminum piping is lightweight and heat-resistant, ensuring that the intake charge stays cool even during stop-and-go traffic.
• Reusable Filtration: Includes a high-velocity, washable cone filter that eliminates the need for restrictive paper filters, saving you money over the life of the vehicle.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2003 Kia Sorento LX 3.5L V6
• 2003 Kia Sorento EX 3.5L V6
• 2004 Kia Sorento LX 3.5L V6
• 2004 Kia Sorento EX 3.5L V6
• 2005 Kia Sorento LX 3.5L V6
• 2005 Kia Sorento EX 3.5L V6
• 2006 Kia Sorento LX 3.5L V6
• 2006 Kia Sorento EX 3.5L V6

Interchange Part Numbers:

2003, 2004, 2005, 2006, 3.5L, LX, EX, T-304-ALUM-INTAKE-KS0306

The Performance Promise

Buy with confidence. This kit includes all necessary hardware for a true bolt-on installation that can typically be completed in under an hour with basic hand tools. Backed by real automotive experts and fast shipping.