GReddy Airinx M Performance Pod Filter | 100mm Inlet | Universal | 12500633
GReddy Airinx M Performance Pod Filter – 100mm Inlet | Universal | 12500633
100mm (approximately 4") inlet diameter — confirm your intake pipe OD before ordering. The Airinx M #100 mounts to intake pipes or velocity stacks with a 100mm outer diameter. This is a large-format inlet — measure your intake pipe or existing filter mounting diameter before purchasing. Not compatible with 75mm, 80mm, or other common inlet sizes. Universal fitment — no vehicle-specific bracket or adapter included.
GReddy 12500633 Airinx M pod filter — 100mm inlet, medium body size. A universal high-flow performance air filter from one of Japan’s most established performance manufacturers. Mounts directly to any 100mm OD intake pipe, velocity stack, or custom intake tube without vehicle-specific adapters. 1.4 lbs. Ships fast across Canada and the US.
GReddy Airinx — JDM Performance Filtration
GReddy (Trust Co., Ltd.) has produced performance intake and filtration products since 1977, supplying the Japanese domestic market and global export performance community. The Airinx line is GReddy’s performance pod filter series — used as the filter element on GReddy’s own intake kits and widely adopted by builders fitting custom intake fabrications requiring a high-flow, high-quality filter with established JDM brand credibility.
The Airinx M is the medium-body variant, providing a balance of filter surface area and compact dimensions suited to most 4-cylinder turbo applications (2.0L–2.5L) and larger naturally-aspirated engines requiring a 100mm inlet. The Airinx name carries specific recognition in the SR20, RB, 4G63, EJ, and 2JZ communities where GReddy has a long track record of fitment and performance validation.
100mm Inlet — Sizing and Compatibility
The “#100” designation specifies a 100mm inner neck diameter — the Airinx clamps onto intake pipes with a 100mm outer diameter. At approximately 4 inches, the 100mm inlet is appropriate for:
- High-flow cold air intake and short ram intake tubes in the 3.5–4.0" OD range
- Custom fabricated intake piping on turbo builds where intake diameter has been upsized beyond stock
- Velocity stacks and throttle body adapters measuring 100mm OD
- Replacement filters on GReddy Airinx intake kits specifying the M #100 filter
Common intake pipe sizes for reference: 60mm (2.36"), 70mm (2.75"), 76mm (3.0"), 80mm (3.15"), 89mm (3.5"), 100mm (3.93"). Confirm your pipe’s outer diameter — not inner diameter — matches 100mm before ordering.
Filter Construction
The Airinx M uses GReddy’s layered filter media construction — designed for high airflow with adequate filtration efficiency for a performance street and track application. The filter body and end caps are robust enough for engine bay heat and moisture exposure in normal driving conditions. The inlet neck accepts a standard hose clamp for secure attachment to the intake pipe.
100mm inlet OD — measure your pipe before ordering. Universal fit — no vehicle-specific adapter. Medium body (M) size. Replacement filter for GReddy Airinx M intake kits.
Specifications
- Brand: GReddy
- Part Number: 12500633
- Model: Airinx M #100
- Inlet diameter: 100mm (approximately 4")
- Size: Medium (M)
- Fitment: Universal — any 100mm OD intake pipe or velocity stack
- Weight: 1.4 lbs