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The 370Z’s VQ37VHR V6 can take anything from a simple drop-in panel filter swap to a full cold air intake system, and the right pick depends on whether you just want cleaner factory-style filtration or a real airflow upgrade. These seven are real, currently sold filters and intake systems built specifically around the 370Z’s factory airbox and engine bay, plus one cabin filter for anyone searching “air filter” but really meaning cabin air.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | K&N 370Z Drop-In Replacement Air Filter | $45-$60 | Amazon · eBay |
| 2 | K&N 71-7078 Cold Air Intake System | $250-$300 | Amazon |
| 3 | BMC Performance Air Filter FB483/20 | $60-$80 | Amazon · eBay |
| 4 | Forccord 2-Pack OE-Style Engine Air Filter | $18-$28 | Amazon |
| 5 | AEM Electronically Tuned Intake System 41-1001P | $73-$80 | Amazon |
| 6 | Injen SP1990BLK Cold Air Intake System | $350-$420 | Amazon · eBay |
| 7 | K&N Washable Cabin Air Filter for 370Z | $25-$35 | Amazon · eBay |
The picks, in detail
K&N 370Z Drop-In Replacement Air Filter
A washable, reusable panel filter that swaps directly into the factory airbox with no other changes, K&N’s baseline recommendation for the 370Z.
- Direct fit in the stock airbox
- Washable and reusable cotton gauze media
- K&N million-mile limited warranty
- No tuning or other parts needed
- Pays for itself over disposable paper filters long-term
- Smaller airflow gain than a full cold air intake system
K&N 71-7078 Cold Air Intake System
A complete dry-flow cold air intake system K&N lists as compatible with 2008-2020 Nissan 370Z and Infiniti G37, built to increase airflow and throttle response over the stock airbox.
- Dry-flow (oiled) conical air filter
- Fits 2008-2020 370Z and G37
- Includes intake tube and hardware
- Bigger real-world airflow gain than a panel filter alone
- Reusable filter element
- More involved install than a simple panel swap
BMC Performance Air Filter FB483/20
An Italian-made direct-fit panel filter for the 370Z, using washable cotton gauze media in the stock filter’s shape.
- Direct-fit replacement for the factory panel filter
- Washable cotton gauze construction
- No airbox modification required
- Well-regarded alternative to K&N in the same drop-in category
- Easy DIY install
- Requires periodic re-oiling like other reusable gauze filters
Forccord 2-Pack OE-Style Engine Air Filter
An aftermarket replacement filter matched to the 370Z’s OE part number, using HV filter paper rated to capture 99.9% of impurities.
- Matches OE part #16546JK20A fitment
- HV multi-layer filter paper
- Sold as a 2-pack for two service intervals
- Cheapest way to keep stock-style paper filtration
- 2-pack covers roughly 20,000 miles per filter without buying twice
- Disposable paper media, not reusable like K&N or BMC
AEM Electronically Tuned Intake System 41-1001P
AEM’s tuned intake system for the 370Z, engineered as a full airbox replacement with a washable filter rather than a piggyback panel swap.
- Complete intake system, part #41-1001P
- Washable AEM Dryflow filter
- Engineered specifically for the 370Z’s intake tract
- Reasonably priced for a full intake system
- Reusable filter lowers long-term cost
- Bigger install than a panel filter, may need tuning to fully realize gains
Injen SP1990BLK Cold Air Intake System
Injen’s SP-series dual-tube cold air intake specifically for the 370Z NISMO edition, using a serviceable SuperNano-Web dry filter.
- Fits 2009-2020 370Z NISMO 3.7L specifically
- Dual 6061-T6 aluminum intake tubing
- Serviceable SuperNano-Web dry air filter
- Dyno-documented gains on the NISMO platform
- No re-oiling required, unlike oiled gauze filters
- Fitment is specific to the NISMO trim, not the standard 370Z
K&N Washable Cabin Air Filter for 370Z
For anyone actually searching for the cabin filter rather than the engine air filter, K&N also sells a washable cabin filter sized for the 370Z.
- Direct-fit replacement cabin filter
- Washable and reusable
- Traps dust and allergens from cabin airflow
- One-time purchase instead of repeated disposable cabin filters
- Simple, no-tools install behind the glovebox
- Does nothing for engine intake airflow — a different job entirely from the panel filters above
Buying tips
- If you just want cleaner stock-style filtration with zero other changes, a drop-in panel filter (K&N or BMC) is the simplest fix; save the full intake systems for when you actually want an airflow/sound upgrade.
- Injen’s SP1990BLK is built for the NISMO 370Z specifically — check your trim before ordering, since it isn’t a universal fit across every 370Z.
- Reusable cotton gauze filters (K&N, BMC) need periodic cleaning and re-oiling; if you’d rather not deal with that maintenance, the Forccord OE-style paper filter is a cheaper set-and-forget option.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.