IAG Performance Big MAF Intake – 2002-2007 Subaru WRX/STI

IAG Big MAF Intake — 2002-2007 Subaru WRX / STI

High-Flow Intake with Big MAF Provision
The IAG Big MAF Intake for 2002-2007 WRX and STI is a direct replacement for the factory restrictive intake system. Built from mandrel-bent aluminum piping with smooth interior walls that minimize turbulence, it includes a big MAF provision for larger MAF sensors, a K&N filter, a silicone coupler, and all clamps for a complete installation. Requires a tune for optimal performance.

DETAILS

• Mandrel-bent aluminum piping with smooth interior walls
• Big MAF provision for larger mass air flow sensors
• K&N filter included — serviceable and reusable
• Includes silicone coupler and clamps
• Requires tune for optimal results
• Fits: 2002-2007 Subaru WRX / STI

Big MAF Provision
High-horsepower EJ builds frequently use larger aftermarket MAF sensors to accurately measure the increased airflow. IAG’s intake is machined with the correct provision to accept common big MAF sensors, eliminating the need for custom fabrication.

K&N Filter and Smooth Piping
The included K&N filter is serviceable and reusable with periodic cleaning and re-oiling. The mandrel-bent aluminum piping maintains a consistent bore throughout each bend, minimizing turbulence and keeping airflow velocity consistent.

Tune Required
Any intake change that alters the MAF sensor location or intake airflow path requires a tune to properly calibrate the fuel and ignition maps to the new setup.

Why Choose IAG Performance

IAG Performance has been building Subaru-specific engine and drivetrain components since 2001, and in that time they have become the standard by which serious Subaru builds are measured. Based in Westminster, Maryland, IAG designs, machines, and assembles their products in-house using Haas CNC equipment and their own engineering team. Their catalog spans everything from short blocks and long blocks rated to 1150 BHP all the way down to the fuel system, oiling, and drivetrain hardware that keeps modified Subarus running reliably for years. Every IAG product exists because a problem needed a better solution than what was available — and the engineering shows.

The RallySport Take

The IAG Big MAF Intake is the intake upgrade for any 02-07 WRX or STI building for serious power where the factory restrictive intake is a bottleneck. The big MAF provision makes it a natural fit for builds using an upgraded mass air flow sensor.

Fitment