Forge Motorsport Replacement Air Filter for FMINDK35, FMINDK40, FMINDK45, & FMINDK49
SKU: FMINDK35RF
Premium pleated synthetic nanofiber replacement air filter element for Forge induction kits. Delivers advanced multi-layer particulate capture and superior high-velocity airflow.
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Fast UK Delivery
Delivered in 2-3 Business DaysFast UK Delivery on all Orders, please see delivery information.
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30 Day Money Back
GuaranteeAll returns must be postmarked within fourteen (14) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.
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Forge Motorsport Pleated Synthetic Nanofiber Replacement Air Filter Element
The Forge Motorsport FMINDK35RF/C eplacement cotton filter, or high flow, pleated, synthetic nanofiber filtration air filter for the Forge Motorsport induction kit lineages, including FMINDK35, FMINDK40, FMINDK45, and FMINDK49. This configuration features a synthetic nanofiber media, pleated to maximize surface area. This advanced design outperforms conventional cotton gauze and foam elements by capturing finer dust particles while optimizing air volume delivery into the turbocharger inlet.

Advanced Nanofiber Filtration Capabilities
This premium pleated filter utilizes structural synthetic nanofibers layered across a mesh framework. This dry filtration media requires no oiling, eliminating the risk of oil mist contaminating mass air flow (MAF) sensors or damaging sensitive internal electronic hotwires. The pleated geometry creates a larger effective surface area within a compact engine bay footprint, allowing the filter to maintain maximum velocity and high-volume delivery even as it captures road grime over extended use.
Choose Your Option
Forge offers interchangeable filter options depending on your environmental conditions and performance preferences:
Pleated Nanofiber (Variation 4031)
Dry synthetic nanofiber media. Delivers maximum surface area, high-velocity airflow, and outstanding dust filtration with low maintenance requirements.
Multi-Layer Foam (Standard)
A multi-density reticulated foam structure built for maximum flow. Ideal for track setups where outright air volume delivery is the primary focus.
Addons: Forge Filter Cleaning and Maintenance Kit - FMFILCLEAN
Need your seasonal vehicle inspection and filter swap handled professionally? Schedule an appointment with our specialist service workshop team.
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Vehicle Compatibility & Induction Systems
This replacement element is verified for installation across the following intake assemblies and vehicle applications:
| Induction Kit Reference | Primary Vehicle Applications Covered |
|---|---|
| FMINDK35 / FMINDK40 | VW Golf MK7/MK7.5/MK8 GTI, Golf R, Audi S3 (8V/8Y), Cupra Leon |
| FMINDK45 / FMINDK49 | Audi TTS, VW Tiguan R 2.0 TSI (2017 Onwards) |
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