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If you drive a Subaru Impreza and want to limit oil and carbon buildup in the intake tract, a dedicated oil catch can can help. Choosing the right unit matters because fit, filtration design, and ease of installation affect both effectiveness and long-term maintenance.This guide covers our shortlisted picks for Subaru Impreza oil catch cans, selected for compatibility and practical performance. We evaluated filtration method and mounting/install factors to help you pick the best option for your intended use.
Looking for other parts? See all Subaru Impreza parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | muge racing Aluminum Baffled 400ml Oil Catch Can with Breather Filter |  |
| Most Popular A crowd favorite that many people choose with confidence | SPEEDWOW 300ml Baffled Oil Catch Can with Hose Kit |  |
| Best Quality Built to a higher standard if you want something more solid | EVIL ENERGY 300ml Baffled Oil Catch Can with NBR Hose Kit |  |
| Best Budget The cheapest option that still gets the job done reliably | ZNDAW 150ml Billet Aluminum 2-Port Baffled Oil Catch Can Kit |  |
| Most Sold A high-volume bestseller chosen again and again | RANSOTO Billet Oil Catch Can with Z-Bracket for 5.7L/6.4L HEMI |  |
| Best Value for Money The sweet spot between price and what you get | EIGIIS 300ml Universal Car Oil Catch Can Kit |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY Oil Catch Can Air Oil Separator (3oz) |  |
1. muge racing Aluminum Baffled 400ml Oil Catch Can with Breather Filter
| Capacity | 400 ml |
|---|---|
| Material | Aluminum |
| Hose size | 3/8" fuel line |
| Installation | Vent or sealed configuration |
This muge racing catch can is a compact, baffled reservoir intended to separate oil and moisture from crankcase vapors before they reach the intake. It installs as an inline air-oil separator or as a sealed can using the included plug and works by cooling vapor on the baffle so liquid collects at the bottom for periodic draining. The kit is machined from lightweight aluminum with an anodized polish and includes a breather filter, three adapter fittings with O-rings, hose clamps and a dipstick for quick level checks. In practice it is useful for reducing carbon and intake contamination on direct-injection engines and for owners who want a tidy, visible reservoir. Known limitations are the thin supply hose and a mounting bracket that may not fit cleanly without modification, and some users report fitting or sealing issues with the supplied fittings. Expect to source thicker 3/8 inch hose and possibly fabricate or relocate a bracket during installation on a Subaru Impreza.
Best for: Reliability-focused Subaru Impreza owners who prioritize protecting the intake and reducing carbon buildup through a simple, serviceable aftermarket solution.
Less Ideal for: Drivers unwilling to modify mounting hardware or replace supplied hoses and fittings should consider a purpose-built Subaru-specific kit with dedicated brackets and OEM-quality hoses.
- Baffled 400 ml reservoir captures oil and moisture before they re-enter the intake
- Lightweight aluminum construction with anodized finish for corrosion resistance and appearance
- Includes breather filter and multiple adapter fittings for flexible installation
- Built-in dipstick and reinforced hose clamps simplify level checks and reduce detachments
- Supplied hose is thin and may kink or collapse under vacuum
- Mounting bracket position and holes often require modification for clean firewall or chassis mounting
- Some fittings have leaked for users and may need thread sealer or tape
Verdict A budget-friendly baffled catch can that improves intake longevity on a Subaru Impreza if you swap the thin hose and adjust the mounting for a solid install.
2. SPEEDWOW 300ml Baffled Oil Catch Can with Hose Kit
| Fit Type | Universal Fit |
|---|---|
| Fuel Type | Gasoline |
| Item Weight | 2 pounds |
This SPEEDWOW catch can collects oil and moisture before they reach the intake, using an internal baffle and a removable bottom for draining. It’s sold as a universal kit that includes 3/8" NBR hose, clamps, mounting brackets, a bronze micron filter, Teflon tape, and a dipstick that doubles as a suction/drain port. Typical use is routing the PCV/CCV hose through the catch can to reduce carbon buildup on intake valves and prolong engine life. Practical benefits include the easy-to-read dipstick, reusable drain design, and included hoses so you rarely need extra parts. Limitations are that the supplied bracket and clamps are basic and some installers swap them for stronger clamps or a modified bracket for tidier mounting; the small 300ml reservoir also needs more frequent checks on vehicles that produce heavy blow-by. In cold climates condensation buildup can freeze if not monitored. Fitment is universal, so expect to plan routing and clearances for tight Subaru Impreza engine bays.
Best for: Convenience-driven owners looking for an easy, mostly complete upgrade to reduce intake carbon on their Subaru Impreza and willing to route and mount a universal kit for quick installation.
Less Ideal for: Drivers who want a vehicle-specific, bolt-on catch can with larger capacity or those unwilling to modify the supplied bracket or swap hardware for a more secure fit.
- Baffled interior and bronze micron filter trap oil and moisture before it reaches the intake
- Includes hoses, clamps, mounting hardware, Teflon tape and a dipstick for a mostly complete install
- Removable bottom and dipstick let you drain or suction fluid without disassembling the unit
- 3/8" NBR hose provided for good oil and heat resistance
- Bracket and supplied hose clamps are basic and may need replacement for a secure long-term install
- 300ml capacity is relatively small and requires regular checks on higher blow-by engines
- Labeling on inlet/outlet has caused some installer confusion in user reports
Verdict A compact, mostly complete universal catch can that is convenient to install and service on a Subaru Impreza but may need upgraded clamps or a custom bracket and frequent checks due to its small reservoir.
3. EVIL ENERGY 300ml Baffled Oil Catch Can with NBR Hose Kit
| Capacity | 300 Milliliters |
|---|---|
| Hose length | 5 ft (1.5 m) |
| Hose ID | 3/8" |
| Thread size | M16 x 1.5 |
This EVIL ENERGY catch can is a 300ml baffled unit built to separate oil and moisture from PCV/crankcase ventilation before those vapors reach the intake. It installs inline with PCV hoses or as a vent for pre-PCV setups and includes a 5 ft NBR hose, clamps, a removable baffle and steel wool for coalescing. For a Subaru Impreza the can’s compact size makes it easy to tuck into tighter engine bays and the threaded M16 connections and included hardware let you adapt to common PCV fittings. In practice it reduces oil carryover and helps limit intake-valve and throttle-body gunk, which is valuable on direct-injection Subaru engines prone to buildup. The 300ml capacity keeps service intervals reasonable but requires periodic draining on high-blow-by engines. Some universal kits need extra hose length or different fittings for a clean, worry-free install and the supplied bracket may need modification to clear specific Impreza mounting points. Overall it is a solid, performance-focused option if you prepare for minor fitment work during installation.
Best for: Performance-oriented owners who want to reduce intake contamination and protect combustion components on a Subaru Impreza and are comfortable making modest fitment adjustments during installation.
Less Ideal for: Buyers looking for a direct bolt-on, vehicle-specific catch can with guaranteed fitment and zero modification; those users should seek purpose-built Impreza kits.
- Baffled internal design plus steel wool improves oil and moisture separation for cleaner intake air
- Compact 300ml body fits into tighter engine bays common on Subaru Impreza models
- Includes 5 ft NBR hose rated for heat and wear for reliable routing
- Removable baffle and serviceable internals make cleaning and maintenance straightforward
- Universal bracket and supplied fittings may require trimming or extra parts to fit some Impreza engine bays
- 300ml capacity means more frequent draining on high-mileage or high-boost engines
Verdict A compact, well-designed baffled catch can that delivers strong oil separation for Subaru Impreza performance builds but may need minor bracket or hose adjustments for a clean install.
4. ZNDAW 150ml Billet Aluminum 2-Port Baffled Oil Catch Can Kit
| Capacity | 5 Fluid Ounces (150 ml) |
|---|---|
| Material | Aluminum |
| Ports | 2-Port |
| Fit Type | Universal |
This ZNDAW catch can collects oil and water vapor from the PCV/valve cover breather to reduce carbon and sludge entering the intake. It installs inline between the crankcase vent and intake, uses internal baffling and a small breather filter to separate contaminants, and offers an easy-to-use drain valve for quick maintenance. The kit includes several hose adapters and O-rings to fit a variety of hose diameters and a clamp and screws for mounting. Aluminum construction promises corrosion and heat resistance for under-hood use, and the 150 ml capacity is sufficient for periodic city or light spirited driving without frequent emptying. Limitations are the small reservoir size and universal fit approach; it may require custom hose routing or specific fittings to install cleanly on some Subaru Impreza engines, and it is not intended for heavy track use where a larger capacity or dual-stage filtration would be preferable.
Best for: Budget-conscious owners who want a simple, low-cost way to reduce intake oil contamination on an Impreza used for daily driving and occasional spirited runs.
Less Ideal for: Drivers planning sustained high-boost, track, or motorsport use should choose a larger-capacity or dedicated Subaru-specific catch can designed for heavy blow-by management.
- Billet aluminum body resists corrosion and heat for durable under-hood service
- Baffled internal design and breather filter reduce oil and water vapor entering the intake
- Included drain valve makes routine draining quick and tidy
- Multiple adapter fittings and O-rings increase chances of a clean fit without extra parts
- Small 150 ml reservoir will need more frequent draining under heavy blow-by or aggressive driving
- Universal kit may require additional brackets or hoses for neat fitment on some engines
Verdict A low-cost, compact aluminum catch can that provides practical intake protection for daily-driven Subaru Imprezas but may be undersized for heavy or track use.
5. RANSOTO Billet Oil Catch Can with Z-Bracket for 5.7L/6.4L HEMI
| Compatible with | 2011+ Chrysler 300, 2011+ Dodge Charger, 2011–2021 Dodge Challenger, 2011–2021 Jeep Grand Cherokee |
|---|---|
| Material | T6061 billet aluminum |
| Drain | Knurled tool-free bottom drain |
| Mounting | Z-style bracket included |
This catch can collects oil-laden vapors from the PCV system to help prevent intake-valve and intake-manifold carbon buildup. It is a CNC-machined billet aluminum can with an anodized finish and a knurled, tool-free drain plug for simple maintenance. The kit includes a Z-style bracket positioned to make the can accessible for routine draining and a set of hoses and fittings intended for a bolt-on install. In practice the can is useful for drivers who want to reduce crankcase vapor recirculation back into the intake and prolong engine cleanliness. Several buyers report solid build quality and straightforward mounting when compatible locations are available, but the supplied hoses, fittings, and a mounting fastener may not fit every engine bay and can require clamps or a different bolt for a tidy installation. A few users also noted fitment issues on certain high-performance variants, so expect to verify clearance and routing before installation.
Best for: A risk-averse mainstream buyer who wants to proactively protect engine longevity by reducing intake carbon contamination and prefers a straightforward, serviceable aftermarket solution.
Less Ideal for: Drivers seeking a drop-in, guaranteed fit for a Subaru Impreza without modification should avoid this kit unless they are prepared to verify fitment or swap small hoses and fasteners; those wanting model-specific, plug-and-play Subaru parts should look elsewhere.
- CNC-machined billet aluminum body offers durable, corrosion-resistant construction and a refined engine-bay appearance.
- Knurled bottom drain allows tool-free draining for quick, mess-minimized maintenance.
- Z-style mounting bracket gives an accessible mounting option that simplifies routine service access.
- Includes hoses, fittings, and hardware to enable a mostly bolt-on installation in compatible applications.
- Supplied hoses and hose ends are reported tight or mismatched for some installations and may require extra clamps or replacement hose.
- Mounting bolt and some hardware in the kit can be the wrong length for certain engine bays, needing a substitute fastener.
- Not explicitly specified for Subaru Impreza fitment so additional verification and possible modifications are required for correct installation.
Verdict Solid billet catch can with easy servicing and flexible mounting, but expect to verify fitment and swap small hoses or fasteners for a proper Subaru Impreza installation.
6. EIGIIS 300ml Universal Car Oil Catch Can Kit
| Capacity | 300 Milliliters |
|---|---|
| Fuel Type | Gasoline |
| Product Grade | Performance Part |
| Fit Type | Universal Fit |
| Manufacturer | EIGIIS |
This EIGIIS catch can is a straightforward, budget-focused solution for keeping oil and blow-by deposits out of the intake system. It installs inline with the PCV/vent plumbing and uses a baffled reservoir and removable top baffle so you can add filtering media. The can is tig welded aluminum with O-ring sealing and a threaded drain for easy cleaning without removing the unit. The kit includes multiple barbed fittings and a bracket to fit different layouts, which helps while locating a mount in the engine bay. Expect to replace the supplied vacuum hose with a higher-quality line for long-term reliability since many buyers report the included hose is soft. For a Subaru Impreza, this catch can offers a low-cost way to protect intake valves on engines that route crankcase vapors into the intake; it will need correct hose routing and a solid mount for a durable installation. It is not a precision, vehicle-specific OEM replacement, so take time on fitment and hose selection when installing on the Impreza.
Best for: Practical optimizers looking for an affordable, effective way to reduce intake contamination on a Subaru Impreza without paying for an expensive vehicle-specific kit.
Less Ideal for: Drivers seeking a factory-style, vehicle-specific direct-fit solution or those unwilling to modify routing and replace the supplied hose should consider higher-end, Impreza-specific catch cans.
- Compact 300ml capacity suitable for daily driving capture needs
- Baffled design and removable top allow adding filtering media for better separation
- Tig-welded aluminum body with O-ring and threaded drain for leak-resistant, easy cleaning
- Includes multiple barbed fittings and mounting bracket for flexible placement
- Included vacuum hose is low quality and most installers replace it before use
- Bracket and mount position may require modification for a clean, secure fit on some engine bays
Verdict A budget-friendly, serviceable catch can that protects the Subaru Impreza intake if you invest a bit of time swapping the hose and securing a solid mount.
7. EVIL ENERGY Oil Catch Can Air Oil Separator (3oz)
| Compatibility | Designed for specific vehicle layouts (matched applications) |
|---|---|
| Filter | Fine mesh aluminum filter |
| Capacity | 3oz |
| Mounting | Includes custom bracket and hoses |
This EVIL ENERGY air oil separator is built to trap oil vapor and contaminants before they reach the intake, helping reduce valve and intake buildup and keeping the engine cleaner between services. It is supplied with a fine mesh filter, quick-connect PCV fittings, custom brackets and hoses for a straightforward install when the part is matched to the vehicle layout. The can features a removable, O-ring sealed drainage cup for periodic emptying and a baffled internal arrangement to improve separation efficiency. In practice the unit is easy to install on compatible engines and requires routine checks and draining every few hundred miles depending on driving. A few owners report tight cup threads that benefit from anti-seize during assembly and the mounting bracket sits close to the can which can make cup removal awkward in limited engine bay space. Overall it delivers the core function of an oil catch can with parts and fitment intended to simplify installation for a matched application.
Best for: Balanced all-round buyers who want a straightforward, vehicle-matched solution to limit intake contamination and extend engine cleanliness without a lot of custom fabrication.
Less Ideal for: Drivers planning heavy track use, extreme boost, or who prefer a large-capacity professional-grade separator should consider higher-capacity or motorsport-focused units instead.
- Vehicle-specific fitment and custom brackets and hoses to reduce modifications during install
- Fine mesh aluminum filter and baffled design to capture small oil vapors
- Removable, O-ring sealed drain cup for easier maintenance
- Includes quick-connect PCV fittings for a faster, cleaner hookup
- Small 3oz capacity requires more frequent draining on high-mileage or boosted engines
- Bracket sits close to the cup which can make removal and draining awkward in tight engine bays
Verdict A well-equipped, vehicle-matched catch can that simplifies installation and reduces intake gunk, but its small 3oz capacity means more frequent draining for heavily used or boosted Subaru Impreza engines.
Choosing the Right Subaru Impreza Oil Catch Can: Key Factors to Consider
Filtration and Separation Method
How the unit separates oil and vapors determines how much oil reaches the intake over time. Mechanical baffle systems, mesh or baffled internals, and filter media each trap oil differently and will influence how often you need to service the can.
A more efficient separation system will capture finer droplets but can clog faster or require more complex cleaning. Consider the balance between capture efficiency and ease of maintenance based on your driving habits.
Mounting and Engine Bay Fitment
Space in an Impreza engine bay can be limited, so the can’s size and mounting options matter for a clean, secure installation. Look for dedicated brackets, multiple mounting points, or universal kits that clearly show compatibility with common Impreza layouts.
Good placement reduces hose length and avoids heat sources, which helps preserve trapped oil and prevents hose collapse. Also check that the can does not interfere with service access to other components.
Hose and Fitting Compatibility
The catch can must connect properly to PCV, valve cover, and intake plumbing using the correct hose diameters and fittings. Mismatched fittings can cause leaks or restrict flow, so confirm included adapters or common sizes used on Subaru Impreza engines.
Quality fittings and hose clamps reduce the chance of vacuum leaks and make installation more reliable. Some kits include pre-measured hoses and adapters to simplify the process.
Capacity and Drain Method
Oil collection capacity affects how often you need to empty the can, which matters for convenience and cleanliness. A larger reservoir suits infrequent checks, while a smaller one may require more regular attention but can be lighter and easier to package.
Look at the drain method as well. Twist-off cups, petcock valves, and threaded drains each influence how messy or quick the maintenance task will be.
Materials and Corrosion Resistance
Materials like aluminum and stainless steel resist corrosion and handle engine-bay conditions better than some plated or painted options. Construction quality affects long-term sealing and the likelihood of thread or fitting failure.
Consider the finish and any protective coatings if you live in a humid or salty environment. Robust materials also tolerate the heat cycles in the engine bay without deforming.
Serviceability and Maintenance
Routine cleaning and inspection are part of owning a catch can, so choose a design that makes servicing straightforward. Removable internals, accessible drains, and clear inspection windows simplify checks and reduce the temptation to postpone upkeep.
Easier maintenance helps maintain performance benefits over time and reduces the chance of clogged internals affecting PCV flow.
FAQ
Do Subaru Impreza engines need an oil catch can?
It depends on your goals and how you use the car. Catch cans can reduce oil and vapor entering the intake, which often helps limit carbon buildup and maintain throttle and MAF sensor cleanliness. For everyday driving the benefits are variable, while for high-mileage, high-boost, or performance-driven use they are more commonly sought.
How often should I empty a catch can on a Subaru Impreza?
Frequency varies with engine condition and driving style but is often every few thousand miles or during routine maintenance checks. Inspect the reservoir periodically; heavier idling, short trips, or spirited driving usually increase oil accumulation and require more frequent emptying.
Will installing a catch can affect engine vacuum or PCV function?
A properly sized and plumbed catch can typically maintains correct PCV flow and does not negatively affect engine vacuum. It is important to use the right hose diameters and routing and to avoid restrictive internals that could impede flow under normal operating conditions.
Can I install an oil catch can myself on a Subaru Impreza?
Many owners can install a catch can with basic tools and mechanical aptitude, especially if the kit includes a bracket and fittings. Follow manufacturer guidance for hose routing and torque specs. If you are unsure about vacuum routing or fittings, a professional installation avoids leaks and ensures proper operation.
How does climate affect catch can performance?
Colder climates can cause vapors to condense more readily, increasing collected liquid in the can, while hotter conditions may keep more vapors in gaseous form. Either way, monitor the can more frequently during extreme seasonal conditions to prevent overflow or unnoticed accumulation.
How We Chose the Best Subaru Impreza Oil Catch Can
We focused on items that fit Subaru Impreza engine layouts and offered practical benefits without unnecessary complexity. The primary evaluation criteria were filtration efficiency and separation method, mounting and plumbing compatibility with the Impreza engine bay, build materials and corrosion resistance, oil capacity and drain convenience, and serviceability for routine maintenance. We also considered official fit guidance, the presence of necessary mounting hardware or hose fittings, and whether the unit used replaceable elements or simple washable designs.Units were excluded if they required extensive custom fabrication, lacked clear fitment guidance for Subaru Impreza engines, or used materials prone to rapid corrosion. We prioritized solutions that balance effectiveness, ease of install, and long-term durability for everyday driving and light performance use.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a Subaru Impreza oil catch can, focus on fitment, filtration effectiveness, and how easy the unit is to service. Prioritize a design that matches your engine bay space and provides reliable separation without creating installation headaches.Balance capacity, materials, and hose compatibility against how often you will perform maintenance. That approach will help you get the most consistent intake protection and longevity benefits from a properly installed catch can.
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