FL5 Intake Airbox Reference Thread

[Cueyo]

I was scouring the forum for a definitive thread on intake airboxes for the FL5. I didn't find one, so I figured I'd make a reference thread.

Also adding a poll to get an idea of what everyone in the community is running. If there's any I missed please let me know, I will be actively updating this thread. For the sake of thoroughness I am including air filters.

Feel free to add your opinions, suggestions, and thoughts on the different intakes.

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Spoon Air Cleaner (drop-in filter):

Current Price: $235 USD
Claimed Performance Gain: None
Housing Material: N/A
Filter Material: Polyester
Tune Required: No
Link: https://spoonusa.com/spoon-air-cleaner-civic-fl5

PRL Air Filter Upgrade (drop-in filter):

Current Price: $65 USD
Claimed Performance Gain: None
Housing Material: N/A
Filter Material: Cotton
Tune Required: No
Link: https://prlmotorsports.com/products/2023-honda-civic-type-r-fl5-replacement-panel-air-filter-upgrade

K&N Drop-In Filter:

Current Price: $64.95 USD
Claimed Performance Gain: None
Housing Material: N/A
Filter Material: Oiled cotton gauze
Tune Required: No
Link: https://www.knfilters.com/air-filters/honda/civic-type-r

Cobb Drop-In Filter:

Current Price: $105 USD
Claimed Performance Gain: None
Housing Material: N/A
Filter Material: Single-layer polyester w/ molded rubber base
Tune Required: No
Link: https://www.cobbtuning.com/products...r-fl5-2023-2024-acura-integra-type-s-de5-2024

PRL HVI (High Volume Intake):

Current Price: $490 USD
Claimed Performance Gain: +133% airflow over OEM
Housing Material: HDPE rotomolded airbox (CF available)
Filter Material: Oiled cotton (6" cone)
Tune Required: No
Link: https://prlmotorsports.com/products/2022-honda-civic-type-r-fl5-high-volume-intake-system

aFe Takeda CAI:

Current Price: $428 USD (Pro 5R oiled variant)
Claimed Performance Gain: Up to +19 hp / +15 lb-ft
Housing Material: XLPE (cross-linked polyethylene), one-piece sealed housing
Filter Material: Pro 5R oiled cotton (or Pro DRY S oil-free option)
Tune Required: No
Link: https://afepower.com (search "Takeda Momentum FL5")

HPS Performance Air Intake:

Current Price: $366 USD
Claimed Performance Gain: +13.9 hp / +16.2 lb-ft
Housing Material: Aluminum intake tube + powder-coated steel heat shield
Filter Material: Cotton
Tune Required: No
Link: https://hpsperformanceproducts.com/...nda-civic-type-r-fl5-k20c1-2-0l-turbo-827-741

27WON Hybrid Intake:

Current Price: $389.99 USD
Claimed Performance Gain: ~+3–5 whp (27WON's own stated expectation, not a big power adder)
Housing Material: 5052 aluminum 3-sided shroud (raw or powdercoat)
Filter Material: Dry-flow synthetic (4")
Tune Required: No
Link: https://store.27won.com/2023-honda-civic-type-r-fl5-hybrid-air-intake-system.html

MST CAI:

Current Price: $328 USD
Claimed Performance Gain: Marketed around restoring low-end torque response (specific dyno numbers not independently published)
Housing Material: Thermal-shielded airbox
Filter Material: High-flow (6")
Tune Required: No
Link: https://www.mst-performance.com/pages/intake-system

K&N Typhoon CAI:

Current Price: $399.99 USD
Claimed Performance Gain: +12.04 hp / +17.6 lb-ft
Housing Material: Mandrel-bent aluminum tube
Filter Material: Oiled cotton gauze
Tune Required: No
Link: https://www.knfilters.com/cold-air-intakes/honda/civic-type-r

Ramair/ProRam CAI:

Current Price: $331 USD (ProRam filter version; foam-filter version ~$319)
Claimed Performance Gain: Owner-reported dyno tests (via Dream Automotive) showed up to ~12 hp; not an official manufacturer spec
Housing Material: Powder-coated steel/aluminum heat shield, CNC MAF housing
Filter Material: ProRam pleated (synthetic) — foam version also available
Tune Required: No
Link: https://ramairusa.com/proram-induction-kit-to-fit-honda-civic-type-r-22/

AIRTEC CAI:

Current Price: ~$460 USD (£369.95 inc. VAT)
Claimed Performance Gain: Not publicly quantified (marketed as increasing airflow/sound)
Housing Material: Aluminum intake pipe w/ laser-cut heatshield
Filter Material: Cotton
Tune Required: No
Link: https://www.airtecmotorsport.com/product/airtec-motorsport-induction-kit-for-honda-civic-fl5-type-r/

Eventuri Intake:

Current Price: $1,645 USD
Claimed Performance Gain: +14 hp / +15 lb-ft
Housing Material: Prepreg carbon fiber (sealed airbox)
Filter Material: Dry synthetic filter
Tune Required: No
Link: https://www.eventuri.net/product/honda-civic-fl5-type-r/

Blitz/GruppeM Intake:

Current Price: $1,851 USD
Claimed Performance Gain: Not independently dyno-published; marketed as increasing torque/power across the range
Housing Material: Carbon fiber
Filter Material: Cotton gauze (K&N-sourced cone filter)
Tune Required: No
Link: https://gruppemusa.com/products/civic-fl5-type-r-k20c-2-0l-turbo-2022-2025-fr-0529

Cobb Redline Intake:

Current Price: $995 USD
Claimed Performance Gain: Not publicly quantified by Cobb for this kit (36% larger MAF housing)
Housing Material: 2x2 twill carbon fiber
Filter Material: Pre-oiled cotton
Tune Required: Yes — requires Cobb OTS Stage 1+/Stage 2 map
Link: https://www.cobbtuning.com/products...nda-civic-type-r-fl5-acura-integra-type-s-de5

Armaspeed CAI:

Current Price: $825 USD
Claimed Performance Gain: Not publicly dyno-quantified
Housing Material: Carbon fiber (airbox + tubing)
Filter Material: Washable synthetic
Tune Required: No
Link: https://www.armaspeed.com/product/honda-civic-type-r-fl5-armaspeed-carbon-fiber-cold-air-intake/

Infinity Design Intake:

Current Price: $1,510 USD
Claimed Performance Gain: +12–20 hp (varies by listing) / up to +20 lb-ft
Housing Material: 100% pre-preg carbon fiber
Filter Material: Double-cone dry filter (synthetic)
Tune Required: No
Link: https://www.infinityautodesign.com/products/honda-civic-type-r-fl5-intake

Acuity Instruments Intake:

Current Price: N/A
Claimed Performance Gain: N/A
Housing Material: N/A
Tune Required: N/A
Link: N/A

Pipercross Intake:

Current Price: $386 USD
Claimed Performance Gain: +10 hp / +20 lb-ft (at 2,800 rpm)
Housing Material: Heatshield + downpipe (aluminum/composite), open-element design
Filter Material: Pipercross composite (foam-based) media
Tune Required: No
Link: https://www.dream-automotive.com/pr...on-kit-honda-civic-type-r-fl5-k20c1-2-0t-2023

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[marcusm86]

Also adding a poll to get an idea of what everyone in the community is running. If there's any I missed please let me know, I will be actively updated this thread. For the sake of thoroughness I am including air filters.

This is awesome. Also no stock option for the poll.

 

[Cueyo]

This is awesome. Also no stock option for the poll.

Roger roger, added stock option

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