10 Best Ford Focus RS Oil Catch Cans for 2026: Baffled Picks for Better PCV Control

If you want cleaner intake plumbing and better PCV control, the right oil catch can can make a noticeable difference on a Ford Focus RS.

Below, we’ve narrowed the field to 10 of the best options for 2026, focusing on fitment, baffling, capacity, and real-world ease of use.

Best 10 Ford Focus Rs Oil Catch Can Picks for 2026

PCV-Side Specific Pick – Mishimoto Baffled Oil Catch Can for Ford Focus RS

If you’re shopping for a ford focus rs oil catch can that fits the PCV side cleanly, this Mishimoto kit is built around the 2016-2018 Focus RS application. It uses a single inline can with a 50-micron bronze filter to help separate oil particles before they reach the intake, and the included molded hoses and vehicle-specific bracket are aimed at making installation more straightforward.

Best For: Focus RS owners who want a vehicle-specific PCV catch can with an included bracket and pre-formed hoses.

Pros:

• Application-specific bracket mounts the can in a dedicated location near the transmission.
• Pre-molded black hoses with factory quick-disconnect fittings support a more reliable install.
• 50-micron bronze filter helps separate oil particles in the PCV system.
• Includes a drain kit and mounting hardware for maintenance and setup.

Cons:

• Designed specifically for 2016-2018 Focus RS PCV-side use, so it is not a universal solution.
• More involved than a basic universal can because it uses a vehicle-specific bracket and hoses.

This is the most tailored option in the group if your priority is fitment and a clean PCV-side install. The included hardware and molded hose layout make it especially practical for Focus RS owners who want an application-specific setup.

Quick-Install Option – K&N 81-0813 Oil Catch Can

The K&N 81-0813 is a practical choice if you want a ford focus rs oil catch can-style solution that focuses on straightforward protection and fast installation. It is designed to help reduce oil contamination from blowby, limit buildup in the intake tract, and protect against power loss and premature detonation, with premium OEM-style connectors and robust hoses.

Best For: Drivers who want a quick-install catch can with OEM-style connectors and basic engine protection.

Pros:

• Promotes cleaner intake components by reducing oil and contaminant buildup.
• Premium OEM-style connectors and robust hoses are designed for easier installation.
• Advertised 30-minute quick and easy installation.
• Vehicle-specific fit type for application-focused use.

Cons:

• Warranty is only listed as 3 months.
• The supplied notes do not include Focus RS-specific mounting details.

For shoppers who value speed and simplicity, this K&N kit keeps the buying decision focused on basic crankcase vapor control and easy hardware. It looks best for someone who wants an uncomplicated install more than a highly customized layout.

Compact Universal Pick – Mishimoto MMOCC-RB Black Oil Catch Can

If you want a compact ford focus rs oil catch can option that can also work in other vehicle setups, this Mishimoto MMOCC-RB is a small universal-style can with a 16-ounce fluid capacity. It is designed to separate oil particles from PCV/CCV air and help defend the intercooler, intake system, and other components from oil blow-by.

Best For: Universal-fit shoppers who want a compact can with moderate fluid capacity.

Pros:

• Compact size and 16-ounce fluid capacity suit tighter engine bays.
• Designed to separate oil particles from PCV/CCV air.
• Intended to help protect the intercooler, intake system, and related components.
• Includes Mishimoto lifetime warranty according to the notes.

Cons:

• Universal fit means installation may require more planning than a vehicle-specific kit.
• The listed warranty description in the details section is inconsistent with the lifetime warranty note.

This is the most compact and broadly adaptable option here, which makes it appealing if you need flexibility rather than an exact Focus RS bracket package. It is a sensible pick for buyers who want a simple oil-separation can with a proven, space-conscious form factor.

High-Capacity Universal Pick – EVIL ENERGY 10AN 1.2L Baffled Catch Can

The EVIL ENERGY 10AN oil catch can is the most capacity-focused option in this roundup, which can appeal if your ford focus rs oil catch can search is really about a universal can for a modified setup. Its 1.2L body, dual breather filters, and dual internal baffles are aimed at holding more oil and moisture while helping reduce intake valve gunk buildup.

Best For: Modified vehicles needing a large-capacity universal catch can with easy draining.

Pros:

• 1.2L capacity holds more oil particles and moisture before service is needed.
• Dual breather filters are designed to maximize ventilation and relieve crankcase pressure.
• Dual internal baffles help separate oil particles and reduce intake valve buildup.
• Bottom drain valve makes maintenance quick and easy.

Cons:

• Universal fitment requires enough engine bay space and planning.
• Not a Focus RS-specific bracketed kit, so fitment is less direct than an application-specific product.

This EVIL ENERGY kit stands out for capacity and serviceability rather than custom fitment. If you have room and want a high-volume universal separator with a drain valve, it offers the most heavy-duty approach in this set.

Universal Baffled Kit – 300ml Aluminum Oil Separator

If you’re shopping for a ford focus rs oil catch can, this universal 300ml kit is built for basic PCV oil separation and cleaner intake plumbing. Its aluminum body, welded construction, and included adapters make it a straightforward option if you have enough room for a universal install.

Best For: Drivers who want a simple universal catch can with a breather filter and multiple hose adapter sizes.

Pros:

• 300ml aluminum tank with anodized, corrosion-resistant finish
• Completely welded design with O-ring sealing to help reduce leaks
• Includes 6mm, 8mm, and 10mm adapters for broader universal fitment
• Designed to help keep carbon, sludge, and captured oil out of the intake system

Cons:

• Universal fit means installation space and routing need to be checked carefully
• Needs weekly cleaning, especially in cold weather
• Not vehicle-specific to the Focus RS

For a universal setup, this kit focuses on the essentials: a sealed tank, basic hose hardware, and a compact 300ml capacity. It’s best suited to buyers who want a functional solution and are comfortable verifying fit before ordering.

Baffled Hose Kit – 300ml Catch Can with NBR Hose

When comparing options for a ford focus rs oil catch can, this EVIL ENERGY kit stands out for its removable baffle and included NBR hose. It’s a universal 300ml aluminum catch can aimed at trapping oil and moisture before they reach the intake, but you’ll still need to confirm space and hose routing for your car.

Best For: Universal buyers who want a baffled catch can kit with a shorter NBR hose and straightforward PCV setup.

Pros:

• Removable baffle helps trap oil and moisture
• Includes durable NBR fuel hose with heat and wear resistance
• 300ml aluminum tank with M16x1.5 threaded ports
• Can be used inline with PCV hoses or with a breather filter, depending on setup

Cons:

• 2.6 ft hose may be limiting for some installations
• Universal fit requires checking for available mounting space
• Needs regular cleaning in freezing conditions

This kit is a practical pick if you want a well-rounded universal catch can with the basics included in the box. The shorter hose can work well in compact routes, but the install still depends on your specific PCV layout.

Long-Hose Baffled Kit – 300ml Catch Can with 5 Ft Hose

If you want a ford focus rs oil catch can with a little more hose to work with, this EVIL ENERGY kit includes a 5 ft NBR line and a breather filter. Its removable baffle and steel balls are designed to help trap oil and moisture, while the 300ml tank keeps the package compact and universal.

Best For: Buyers who need a universal catch can kit with a longer hose and breather filter option.

Pros:

• Removable baffle with steel balls for trapping oil and moisture
• 5 ft NBR hose offers more routing flexibility
• Breather filter included for vent-style applications
• 300ml aluminum tank with M16x1.5 threaded ports

Cons:

• Universal fit still requires checking space and routing
• Cold-weather moisture buildup means regular maintenance is needed
• Only a 3-month manufacturer warranty is listed

Overall, this is the most flexible hose setup of the three if you need extra length for a universal install. It’s a sensible pick for shoppers who want the option of using a breather filter and prefer more routing freedom.

Best with Extra Features – Compact 300ml Aluminum Catch Can

If you are shopping for a ford focus rs oil catch can and want a universal setup, this EVIL ENERGY kit is built around a 300ml baffled aluminum tank with 3/8-inch NBR hose and M16*1.5 fittings. It can be used either as a vent system with the breather filter or as a sealed can in line between PCV hoses, so it gives you flexibility if you are planning a straightforward PCV catch-can install.

Best For: Drivers who want a universal, configurable catch can kit with a breather-filter option.

Pros:

• 300ml aluminum tank with baffled design
• Can be installed with or without the breather filter
• Includes hose, adapters, clamps, bracket, and installation guide
• Universal fit with 3/8-inch hose sizing

Cons:

• Universal design means fitment depends on available space
• Cold-weather moisture buildup can present a freezing risk
• May require weekly cleaning in freezing conditions

Overall, this is a practical catch-can option if you want flexibility and a complete accessory bundle rather than a vehicle-specific solution. For a Ford Focus RS build, the universal format makes it important to verify space and hose routing before buying.

Blue Universal Kit – 300ml Blue Aluminum PCV Separator

For a ford focus rs oil catch can search, this blue EVIL ENERGY kit is the same universal 300ml baffled aluminum design but with a different finish. It uses 3/8-inch hose, M16*1.5 threads, and can be set up with the breather filter or as a sealed in-line PCV catch can, making it a straightforward option for a custom installation.

Best For: Buyers who want the blue version of a universal catch can kit with a breather-filter option.

Pros:

• 300ml aluminum tank with baffled construction
• Blue finish for a different look
• Can run with breather filter or sealed in-line
• Includes the same universal 3/8-inch hose setup

Cons:

• Universal fit still depends on available engine-bay space
• Freezing conditions can create moisture-related concerns
• Requires regular cleaning in cold weather

This version is best chosen for appearance and the same flexible hardware package rather than unique functional differences. If your Focus RS project needs a universal catch can and you prefer the blue finish, it stays simple and familiar.

Red Universal Kit – 300ml Red Aluminum Air Oil Separator

If you want a ford focus rs oil catch can with a more aggressive look, this red EVIL ENERGY kit gives you the same universal 300ml baffled aluminum layout in a different color. It comes with 3/8-inch NBR fuel hose, M16*1.5 inlet and outlet threads, and the option to use the breather filter or run it as a sealed can in line with the PCV system.

Best For: Drivers who want a red universal catch can kit with flexible breather-filter or sealed use.

Pros:

• 300ml aluminum tank with baffled design
• Red finish for a different visual style
• Works with or without the breather filter
• Includes hose, adapters, clamps, bracket, and guide

Cons:

• Universal fit requires checking available installation space
• Cold-weather moisture can increase freezing risk
• Needs regular cleaning if used in freezing conditions

Functionally, this is very close to the other EVIL ENERGY universal kits, so the choice comes down to color and preference. For a Focus RS owner building a custom PCV solution, it offers a complete, easy-to-understand kit without vehicle-specific hardware.

How We Picked the Best Ford Focus Rs Oil Catch Can

For this roundup, we focused on catch cans that make sense for street-driven and lightly modified Focus RS builds. Priority went to designs with proper baffling, durable aluminum construction, easy draining, and either confirmed fitment or flexible universal routing options. We also looked at hose quality, mounting simplicity, and whether the can is sized appropriately for repeated boost and spirited driving.

Quick Comparison

If you want the simplest choice, a vehicle-specific kit is usually the safest path because it reduces guesswork during installation. Universal cans can still work well, but they depend more on your routing, hose selection, and bracket placement. In general, larger-capacity cans are better for cars that see hard use, while compact units suit owners who want a cleaner install with less visual bulk.

Key Buying Factors for a Ford Focus Rs Oil Catch Can

Fitment and Routing

The Focus RS engine bay is tight enough that fitment matters. A true Ford Focus Rs Oil Catch Can should be evaluated first for PCV-side compatibility, hose length, and whether the mounting location clears surrounding components without stress on the lines.

Baffling and Separation Efficiency

Baffling is one of the most important features. A well-designed baffled can helps slow vapor and encourage oil separation before it reaches the intake tract. For turbocharged driving, this is more important than a plain empty canister.

Capacity and Drain Style

Smaller cans are easier to package, but larger volumes usually mean longer service intervals. A drain valve is convenient if you want quick maintenance, while a threaded cap or dipstick-style check can also work if you do not mind more hands-on servicing.

Hose Quality and Durability

Look closely at hose material, clamp quality, and thread fittings. Heat-resistant hose and secure connections help prevent leaks, especially in a boosted application where crankcase pressure and engine movement can test the system.

Who Should Buy Which Ford Focus Rs Oil Catch Can?

If you want the most straightforward install, choose a Focus RS-specific kit with confirmed compatibility. If you plan to customize routing or want a lower-cost setup, a universal baffled can may be a better fit. Enthusiasts who drive hard, track the car, or run higher boost should lean toward a larger, well-baffled design with easy drainage. Daily drivers can prioritize compact size, clean mounting, and maintenance convenience.

In short, the best Ford Focus Rs Oil Catch Can is the one that matches your build, your driving style, and how much time you want to spend on installation and upkeep.