HKS Super Air Filter - 2020+ A90 Supra
HKS Super Air Filter - 2020+ A90 Supra
HKS Super Air Filter for the 2020+ A90 Supra
The HKS Super Air Filter for the 2020+ Toyota GR Supra is a direct-replacement performance air filter that fits in the OEM airbox, replacing the factory paper element with HKS's multi-layer cotton gauze filter media. The cotton gauze construction flows more air than a standard paper filter while maintaining filtration quality sufficient for long-term engine protection. This is the lowest-effort air intake upgrade available for the B58: no airbox modification, no new piping, just a filter swap.
Specs & Highlights
- Direct replacement for OEM filter element
- Multi-layer cotton gauze construction
- Higher airflow than factory paper filter
- Washable and reusable
- Fits in factory airbox without modification
- Fitment: 2020+ Toyota GR Supra (A90)
Filter Dimensions and Surface Area vs OEM
The AT131 Super Air Filter for the A90 Supra is sized at 240mm outer diameter and 65mm height, fitting within the factory airbox housing volume. Filter surface area is approximately 420 cm² versus the OEM paper element's approximately 280 cm², a 50% increase in available filtration area that reduces airflow restriction as the filter loads with particulate over its service life. Filtration rating is 30 microns with the cotton gauze multi-layer construction versus the OEM paper element's approximately 40-micron rating.
The B58 Airbox as the Limiting Factor
The B58 responds to intake airflow improvements and the factory paper filter is a restriction point even in stock form. The HKS cotton gauze element opens up the flow area without requiring the full cold air intake conversion. It is the right upgrade if you want a meaningful intake improvement while keeping the factory airbox. The airbox itself does a reasonable job of managing intake charge temperature; the filter is the piece that limits it.
Washable, Reusable, Maintenance Notes
The Super Air Filter is washable and reusable. HKS sells the cleaning and re-oiling kit separately. With proper maintenance the filter outlasts the vehicle. One purchase versus repeated OEM paper element replacements. Cleaning interval depends on driving conditions and environment.
The FT Breakdown
The Super Air Filter is the first intake upgrade for any B58 Supra build. It is inexpensive, it installs in minutes, and it gives the engine better breathing before you invest in any other intake or engine work. If you have any other HKS intake products on the list. The cold air intake kit, the dry carbon box, the Super Filter works within those systems as well. The 240mm diameter and 420 cm² surface area give the Super Air Filter meaningful headroom as it loads up over its service life — a smaller filter degrades noticeably as it fills, this one does not. That consistent flow across the service interval is why HKS specifies it for their own GT products.