Greddy Air Intake Kit

GReddy Airinx Air Intake Kits: Precision Engineering for Maximum Airflow

When it comes to extracting more performance from a turbocharged or naturally aspirated engine, few upgrades are as immediately impactful as a high-quality air intake kit — and GReddy has been perfecting the art of intake engineering since its roots in Japan's motorsport culture. The brand's signature Airinx product line represents decades of application-specific development, and it remains one of the most recognized names in the Air Intake Kit segment among JDM performance enthusiasts worldwide.

The Airinx System: Two Approaches, One Goal

GReddy Airinx Air Intake Kits are complete, vehicle-specific systems broken down into two main types: a simple-to-install Airinx combination with a one-piece molded internal funnel and pipe or airflow meter adapter, and a second type that adds smooth-flowing mandrel-bent aluminum piping to improve airflow response — in some cases relocating the air filter entirely for even better performance.

GReddy air intake systems improve horsepower through a cool air-charge and smoothly increasing intake airflow. The 4-layer synthetic, deep-pleated, dry filter element provides improved filtration with long service intervals, delivering high flow without sensor contamination. This dry-filter approach is a deliberate engineering choice: all GReddy air intake systems feature a dry filter element specifically to protect sensitive OE intake sensors.

Airinx Filter Construction

The GReddy Airinx filter bodies are built with serious attention to durability and flow efficiency. The Airinx M Universal Air Filter is crafted with a three-layer structure of steel net and high-performance fiber, achieving both high rigidity and intake performance. The polyurethane-molded design — encompassing the filter top, base, and pipe opening — ensures flexibility, durability, and impact resistance, while a sub filter on the top provides a larger filter surface area and improved suction efficiency.

For select vehicle-specific kits, GReddy also incorporates heat management into the design. The duct provides stable fresh air flow, while a heat shield helps prevent increased intake temperatures, and an aluminum suction tube delivers improved induction efficiency. On platforms like the Toyota 86/Subaru BRZ, the Direct Air Intake takes in outside air directly to significantly reduce intake air temperature, with a duct installed inside the grille to actively bring in fresh air from outside and prevent heat soak.

Vehicle Coverage and Application Depth

GReddy's intake catalog reflects the brand's deep roots in iconic JDM platforms. Notable application-specific kits include complete suction systems for the Nissan Skyline GT-R (BNR32/RB26DETT), featuring twin Airinx AY-S intake kits for stock-frame twin turbos with airflow meter elimination. Coverage also spans platforms like the Toyota Supra (JZA80/2JZ-GTE), Honda Civic, and the FA20-powered Toyota 86/Subaru BRZ family. GReddy air intake systems are designed to be the perfect match for free-flowing GReddy exhaust systems, with each application carefully studied to deliver a complete, easy-to-install system with quality construction and great fitment.

Performance Gains and System Synergy

Performance gains are attributed to the use of application-specific filter heat shields, air-box covers, or the Momentum series high-flow, sealed air boxes. Whether you're building a street-focused daily or a dedicated competition machine, GReddy's tiered approach to intake design — from simple drop-in filter upgrades to full mandrel-bent intake systems — means there's an Airinx solution scaled to your build goals. Explore the full GReddy brand catalog or browse all Air Intake Kits to find the right fit for your application.