A WRX intake is one of the first mods people shop for because it changes the car immediately. You hear more turbo spool, more bypass-valve sound, and more induction noise every time you get into boost. The harder question is not whether an intake sounds good. It is whether the intake fits your WRX generation, tune path, and emissions requirements.
The old version of this guide only covered 2015-2020 WRXs. That is too narrow now. The 2022+ VB WRX has a different FA24DIT intake path than the 2015-2021 VA WRX, and COBB’s post-Green-Speed OTS map support makes the exact intake choice matter more than generic “cold air intake” advice.
Quick answer: for a 2022+ VB WRX, the ETS intake is the best enthusiast pick if you want the most owner feedback and are comfortable checking California restrictions. The PERRIN intake is the best no-tune-positioned VB pick. For a 2015-2021 VA WRX, the COBB SF Intake is the safest OTS-supported pick because it is 50-state legal with a CARB EO and has matching COBB maps. The GrimmSpeed StealthBox is the best custom-tune VA intake.
Choose Your WRX Intake Path
How We Picked These WRX Intakes
We did not physically test every intake. We checked current manufacturer pages, retailer listings, product reviews, owner discussion, and tuner guidance. Intake advice needs more caution than old forum posts suggest because changing the MAF housing, sensor location, filter placement, or air straightener can change fueling.
Review sources checked include product and calibration notes from COBB, GrimmSpeed, PERRIN, Mishimoto, ETS, and retailer pages from MAPerformance, Import Image Racing, and New Provisions Racing, plus tuner context from CSTuned, RallySport Direct, SubiSpeed intake testing, and PhatBotti/NASIOC intake testing discussion.
| Factor | Weight | What mattered |
|---|---|---|
| Correct fitment | 25% | VB vs VA, WRX vs STI, 6MT/CVT where applicable |
| Tune path | 25% | COBB OTS map support, custom-tune requirement, stock-tune claims |
| MAF/airbox design | 20% | MAF housing, air straightener, heat shield, factory duct use |
| Owner signal | 15% | Review volume, install feedback, sound praise, fueling complaints |
| Legal/emissions status | 10% | CARB EO, California shipping restrictions, OTS-package status |
| Value | 5% | Price relative to hardware, support, and required tuning |
Best 2022+ VB WRX Intakes
| Pick | Best for | Tune note | Main drawback |
|---|---|---|---|
| ETS Intake | Enthusiast sound and review volume | MAF sleeve supports no-tune use in many cases; tuned sleeve-out path common | Not shipped directly to CA by ETS |
| PERRIN Intake | No-tune-positioned street builds | PERRIN says no ECU recalibration required | CARB status still must be checked |
| Mishimoto Intake | Documented install/warranty | Mishimoto says dyno-tested safe on stock tune | Oiled filter maintenance |
| COBB intake tube/filter | Conservative COBB path | Retains the factory airbox and COBB OTS compatibility | Not a full open intake sound upgrade |
The ETS VB intake has the strongest current owner-review signal we found for a 2022+ WRX intake. ETS lists 67 reviews at the time checked, a 5 inch velocity-stack MAF adapter, a large filter, optional airbox, factory ram-air duct use, and a MAF sleeve intended to support no-tune use in many cases.
The owner feedback is exactly what intake buyers usually want: easy install, good fit, much louder turbo noise, and obvious power once tuned. The caution is also clear. ETS says the intake cannot ship directly to California due to CARB restrictions, and at least one public review warns they would not run it sleeve-out without a tune.
Buy if: you have a 2022+ WRX and want the loud, popular enthusiast intake with a clear custom-tune path.
Skip if: you need California legality, want the quietest setup, or do not want to think about MAF sleeve/tune configuration.
Review evidence: strong for a newer VB part. Reviews repeatedly praise fit, sound, and quality; tune configuration is the main caution.
PERRIN’s VB intake is the best no-tune-positioned pick. PERRIN says it is engineered to run safely without ECU recalibration, maintains accurate air-fuel ratios in its published chart, and is compatible with COBB Accessport OTS maps. It uses a CNC mandrel-bent aluminum tube, precise MAF alignment, reusable foam filter, and optional matching heat shield.
That makes it a good fit for a street owner who wants intake sound and simple fitment without immediately committing to a custom tune. Still, “no tune required” should not be read as “ignore logs forever.” If the car is modified beyond the intake, tune and datalog the setup.
Buy if: you want a VB intake with broad 2022-2026 fitment and no-tune manufacturer positioning.
Skip if: you want the deepest owner-review volume or need explicit CARB EO documentation before purchase.
Mishimoto’s VB intake is the best documentation and warranty pick. Mishimoto lists direct 2022+ WRX fitment, a CNC-machined aluminum MAF housing, powder-coated airbox, mandrel-bent aluminum pipe, oiled filter, lifetime warranty, and dyno-tested gains of up to 13.3 hp and 16.6 lb-ft on a stock tune.
This is a cleaner recommendation for buyers who like manufacturer engineering reports and install documentation. The main maintenance note is the oiled filter. Mishimoto’s warranty language does not cover filter re-oil, and the filter needs normal service.
Buy if: you want a complete VB intake kit with airbox, documentation, and a lifetime warranty.
Skip if: you prefer a dry filter or want the most aggressive custom-tune intake setup.
Best OTS-Friendly VB:
COBB Intake Tube and High Flow Filter Package for 2022-2026 WRX
Check Latest PriceCOBB’s conservative VB airflow path is not the loudest intake in this guide, but it is the easiest to recommend for owners who care about OTS support and emissions paperwork. COBB’s VB intake tube and high-flow filter path retains the factory airbox and hydrocarbon trap, which matters because COBB calls that trap a federally mandated emissions component. COBB lists the package as compatible with factory tuning or available COBB OTS maps when used as directed.
This is better thought of as an intake-tube/filter upgrade than a full cold-air-intake replacement. Pair it with the correct COBB map notes if you are building around an Accessport.
Buy if: you want a conservative COBB-compatible VB setup with less MAF drama than an open intake.
Skip if: your main goal is loud turbo sound.
Best 2015-2021 VA WRX Intakes
| Pick | Best for | Tune note | Main drawback |
|---|---|---|---|
| COBB SF | Most VA owners | COBB +SF OTS maps, CARB EO D-660-110 | Backorder possible |
| COBB Redline | Premium VA builds | COBB +Redline OTS maps, CARB EO coverage | Expensive |
| GrimmSpeed StealthBox | Custom-tuned cars | GrimmSpeed says tuning required, no OTS maps | Not factory-tune compatible |
| Mishimoto | CARB-conscious budget | CARB EO currently covers 2015-2018 per Mishimoto note | Tune/map path less simple than COBB |
| ETS | Sound/value | ETS says no tune required, but tuner approval is still wise | EyeSight airbox fitment note |
The current COBB SF Intake replaces the older Big SF recommendation for most VA WRX owners. COBB redesigned the SF intake after feedback from customers, dealers, and Protuners, and the current product page lists 2015-2021 WRX fitment, an integrated velocity-stack MAF housing, air straightener grid, airbox, compatibility with COBB +SF OTS maps, and 50-state legal status under CARB EO D-660-110.
That combination is why this is the best overall VA pick. It is not just an intake; it is an intake with an obvious map path. Use the current +SF map for this intake, not an old +BigSF map and not a generic Stage 1 map. COBB does not position this as a stock-tune intake.
Buy if: you want the simplest 2015-2021 WRX intake recommendation with COBB map support and CARB EO coverage.
Skip if: you are not using a COBB tune path, want to stay on the stock tune, or want carbon fiber/premium bay appearance.
The COBB Redline intake is the premium VA option. COBB lists a full carbon-fiber airbox with integrated ducting, tool-less filter access, compatibility with +Redline OTS maps, and 50-state legal status with CARB EO coverage. It costs much more than the SF intake, but it also solves the usual premium-intake problem: it looks expensive and has the calibration path to match.
Choose this if the car already has a polished engine bay, Redline package parts, or you simply want the best-looking COBB-supported intake.
Buy if: you want the premium COBB intake and are willing to pay for carbon fiber and map support.
Skip if: you just want sound per dollar.
The GrimmSpeed StealthBox is the custom-tune favorite. GrimmSpeed says the intake is not compatible with the factory tune or OTS maps and requires tuning, but the design is excellent: MAF placement inside the heat shield, factory ram-air duct use, low-bend aluminum tube, reusable dry filter, and a heat shield that is central to the product rather than an afterthought.
MAPerformance lists 35 reviews at the time checked, all positive, with repeated praise for sound, fitment, quality, and the way the intake wakes up a tuned VA WRX. Tuner context from CSTuned also recommends the GrimmSpeed design for stock and elevated power levels because of its MAF and plumbing layout.
Buy if: you are getting a custom tune and want the intake many VA tuners are comfortable calibrating.
Skip if: you want a factory-tune or COBB OTS-map intake.
Review evidence: strong. Reviews and tuner notes repeatedly praise quality and sound; the requirement for a tune is the intentional tradeoff.
Mishimoto’s VA intake remains a useful recommendation because it includes an airbox, uses the stock intake duct, has an aggressive sound, and carries Mishimoto’s lifetime warranty. Mishimoto lists direct 2015-2021 WRX fitment and notes that Executive Order D-759-3 currently covers model years 2015-2018.
That CARB note is narrower than the full 2015-2021 product fitment, so California buyers need to verify their exact model year. The COBB map path is also not as simple as the COBB SF or Redline intake path.
Buy if: you want a lower-cost airbox intake and your exact model year/legal/tune path checks out.
Skip if: you want the easiest Accessport OTS setup.
The ETS VA intake is a strong sound/value pick. MAPerformance lists 52 reviews at the time checked, with repeated praise for sound, build quality, and responsiveness. The product uses a 3 inch tube, 5 inch velocity stack, large K&N filter, factory duct compatibility, plug-and-play harness, and optional airbox.
ETS/MAP product language says no tune is required and safe air-fuel ratios are maintained, but many VA WRX tuners still prefer to scale the MAF for any intake. Treat the no-tune claim as manufacturer positioning, not permission to ignore datalogs.
Buy if: you want a loud, well-reviewed VA intake and your tuner approves it.
Skip if: you need CARB paperwork or a guaranteed OTS map path.
Do You Need A Tune For A WRX Intake?
For many VA WRX intakes, yes. The 2015-2021 FA20DIT is sensitive to MAF scaling. If an intake changes the MAF housing, sensor location, air straightener, tube diameter, or flow pattern, the ECU may see airflow differently than it did with the stock airbox. CSTuned summarizes the issue well: tuning changes for an intake generally revolve around scaling the MAF so the ECU accounts for the right amount of air. If you are considering a laptop-based calibration instead of an AccessPort, read our VA and VB WRX open-tuning guide first.
COBB OTS intake maps are intake-specific. A +SF map is for the current COBB SF intake, a +BigSF map is for the older Big SF intake, and a +Redline map is for the Redline intake. Do not use a COBB intake map for an ETS, PERRIN, Mishimoto, AEM, or GrimmSpeed intake unless the map notes explicitly say that exact part is supported.
The safest rule:
- If COBB provides a matching OTS map for the exact intake and your exact setup, use that map.
- If the manufacturer says tuning is required, tune it.
- If the manufacturer says no tune is required, still datalog after install.
- If the car has multiple airflow mods, stop relying on generic no-tune claims.
- If AF correction/learning looks strange after install, solve that before pushing the car.
VB WRX intakes are newer and several manufacturers now advertise stock-tune compatibility. That is useful, but it does not override common sense. A stock-tune VB with one no-tune intake is different from a VB with an intake, inlet, charge pipe, intercooler, exhaust, and mixed fuel. COBB’s own VB OTS map notes should be read narrowly: COBB support for its intake tube/filter package does not mean COBB OTS maps support every third-party full intake.
What To Know Before Buying A WRX Intake
VB and VA intakes do not interchange. A 2022+ WRX is a VB/FA24DIT car. A 2015-2021 WRX is a VA/FA20DIT car. STI intakes are different again.
The airbox matters. A filter sitting in hot engine-bay air may sound great but can give up consistency. Favor designs that seal to the factory duct, include a real heat shield, or use an enclosed airbox.
MAF placement matters more than pipe shine. A smooth MAF signal is what keeps fueling predictable. Poor MAF placement can create idle, drivability, fuel-trim, and tuning issues.
The stock intake is not bad. For many VA WRXs, the OEM airbox is stable, sealed, and predictable. If you only want reliability and modest power, keeping the stock box is a valid choice.
Filter maintenance matters. Oiled filters need correct cleaning and re-oiling. Too much oil can contaminate the MAF. Dry filters are simpler but still need cleaning or replacement.
Water risk depends on placement. Most modern WRX intakes keep the filter protected in the engine bay/fender area, but very low filter placement and heavy standing water are still worth avoiding.
Sound is the main guaranteed gain. Some intakes show good dyno results with tuning, but the everyday difference most owners notice first is turbo and bypass-valve sound.
Common WRX Intake Mistakes
Buying a VA intake for a VB WRX: the generation split matters.
Buying an STI intake for a WRX: VA WRX and VA STI use different engines and intake layouts.
Running a tune-required intake on the stock map: this can lean the car out, create fuel-trim problems, or trigger overboost behavior.
Mixing the wrong OTS map and intake: a COBB +SF map is for the COBB SF intake, not a random intake that looks similar.
Ignoring California/CARB notes: 50-state legal claims apply only to exact part numbers, years, and use conditions.
FAQ
How much horsepower does a WRX intake add?
On a stock-tune car, do not expect a huge peak horsepower gain. The bigger benefit is sound and reduced pre-turbo restriction. With the right tune, some intakes can support meaningful gains, but results depend on fuel, tune, weather, and supporting mods.
Does a WRX intake make the turbo louder?
Yes. A WRX intake is one of the most noticeable sound mods because it uncovers turbo spool and bypass-valve noise that the stock airbox muffles.
Is the COBB Big SF still the best VA WRX intake?
The current recommendation is the newer COBB SF or COBB Redline intake, not the old Big SF. COBB says the current SF design incorporated feedback from the older intake and is compatible with +SF OTS maps.
Can I run an intake without an Accessport?
Only if the intake is truly designed for stock-tune use and your car logs cleanly after installation. For many VA WRX intakes, an Accessport or custom tune is the safer path.
What is the best WRX intake for California?
Use the exact part number and model year covered by a CARB EO. For the VA WRX, COBB’s SF and Redline intakes have clear 50-state legal language on COBB’s product pages. For any other intake, verify the EO before buying.
Bottom Line
For a 2022+ VB WRX, start with ETS if you want the loud enthusiast favorite, PERRIN if you want no-tune positioning, Mishimoto if you want documentation and warranty, or COBB if you want the conservative OTS-friendly path.
For a 2015-2021 VA WRX, the COBB SF is the best overall intake because it combines fitment, CARB EO language, and OTS map support. Choose COBB Redline for the premium version, GrimmSpeed for a custom-tuned car, Mishimoto for a lower-cost airbox intake with partial CARB coverage, and ETS for sound/value when your tuner approves it.