Radium Dual Oil Catch Cans for FK8/FL5 Type R/DE5 Type S

Radium Dual Oil Catch Can Kit - Honda Civic Type R / Acura Integra Type S

Want to keep the intake tract on your Type R or Integra Type S clean for the long haul? This is how you do it. Your turbo K20C1 constantly pushes crankcase blowby gases back through the PCV system, and those gases are full of oil mist and water vapor that would otherwise get pulled straight into your intake. This Radium dual catch can kit intercepts all that junk before it gets there, catching the oil and condensation so it ends up in the can instead of caked all over your intercooler walls, throttle body, and intake manifold. You get both catch cans, the PCV side and the CCV side, so the whole crankcase ventilation system is covered, and the kit comes with everything you need to bolt it on.

Why You Want Catch Cans On A Turbo Honda

Here's what's happening under your hood. The PCV system is designed to route those oily crankcase vapors back into the intake to be burned, which keeps emissions in check but slowly coats everything downstream in an oily film. Over time that means oil buildup on your intercooler walls, your throttle body, and your intake manifold, and that gunk drags down performance. Pulling that oil out before it reaches the intake keeps your inlet air cleaner, which effectively raises your octane, helps your engine make better power, and even lowers hydrocarbon emissions. And because it's a sealed system, you're not getting oil vapors creeping into your cabin either. On a boosted car you actually care about, this is cheap insurance for keeping the intake side clean.

Fluid Lock Means It Won't Dump Back Into Your Intake

This is the feature that sets Radium's cans apart, and it solves a real problem with ordinary catch cans. With a typical can, if you forget to empty it and it overfills, those trapped contaminants get pulled right back out of the reservoir and into your intake, which is the exact thing you bought a catch can to prevent. Radium fixed that with their patented Fluid Lock system. It physically keeps the reservoir from overfilling and traps the collected fluid in there until you empty it, so even if you go a little long between services, it's not going to siphon the mess back into your engine. It's the kind of design detail that matters when real life gets busy and you forget to check it on schedule.

Closed Loop, So It's Emissions And Track Legal

These cans do not vent to atmosphere, which matters for a couple of reasons. First, that keeps the setup emissions legal and track legal, so you're not going to fail tech or an inspection over it. Second, a closed-loop system actually helps your engine: it pulls the oil and sludge out of the PCV gases before they head back to be burned, and it promotes negative crankcase pressure, which is what you want for performance. So you're cleaning up the air going into your engine and helping crankcase pressure at the same time, all without venting anything into the open air or your cabin.

Both Sides Covered: PCV And CCV

This is the dual kit, so you get a catch can for the PCV side and one for the CCV side, and they work completely independently of each other. The PCV can runs inline with your PCV valve and keeps its factory function intact, catching the vapors that would normally get drawn into the intake manifold under vacuum at idle, cruise, and deceleration, especially right after a hard pull. One nice thing about Radium's design: because the cans are pressure sealed, you don't need an inline check valve, so a direct intake manifold connection is totally fine. It's a clean, complete setup rather than half a solution.

Specs And Features

• Direct fitment, no drilling required, mounts using factory holes
• Large 10AN ORB inlet and outlet ports
• 4AN ORB drain port
• 2-step oil separation baffling
• O-ring sealed dipstick for easy level checks
• Patented Fluid Lock anti-overfill system
• 7 fluid ounce capacity
• Closed loop, does not vent to atmosphere (emissions and track legal)
• Designed for left-hand-drive vehicles

How Often To Empty Them

There's no one-size emptying schedule, because how fast the cans fill up depends on your specific car and how you drive it (and the PCV side usually collects more than the CCV side). The easy way to dial it in: use the built-in dipstick to check the level after about 3 to 4 weeks of driving, see how much it's caught, and set your own interval from there. Emptying is simple, just unscrew the lower reservoir and dump it, or if you've got room under the can, you can add Radium's Petcock Drain Kit to drain it without pulling the reservoir.

If You're Catching A Lot Of Oil, Pay Attention

One honest heads-up: if your cans are filling up with an unusual amount of oil, that can actually be your engine trying to tell you something. Excessive oil collection can point to things like heavy blowby from engine wear or damage, an over-full oil level causing crankcase windage, poor breather port placement or baffling, or a PCV valve that isn't closing under load. A little oil and moisture is normal and exactly what the cans are there for, but a lot of it is worth investigating rather than just emptying and moving on.

What You Get

• Radium dual oil catch can kit (PCV and CCV catch cans)
• Fluid Lock anti-overfill system in each can
• 2-step oil separation baffling and O-ring sealed dipsticks
• 10AN ORB inlet/outlet and 4AN ORB drain ports
• All hardware for a complete bolt-on install, no cutting or drilling
• Closed loop, emissions and track legal

Fits These Cars

• 2017-2021 Honda Civic Type R (FK8)
• 2023-2026 Honda Civic Type R (FL5)
• 2024-2026 Acura Integra Type S

Note: Radium Engineering dual oil catch can kit for the 2017-2021 and 2023-2026 Honda Civic Type R and 2024-2026 Acura Integra Type S (left-hand-drive). Includes both the PCV and CCV catch cans, which operate independently to pull oil mist and water condensation from crankcase gases before they reach the intake, preventing oil buildup in the intake, intercooler, throttle body, and intake manifold, raising effective octane from cleaner inlet air, and lowering hydrocarbon emissions. Each can features the patented Fluid Lock anti-overfill system, 2-step oil separation baffling, an O-ring sealed dipstick, 10AN ORB inlet and outlet ports, a 4AN ORB drain port, and 7 fluid ounce capacity. The system is closed loop and does not vent to atmosphere, so it is emissions and track legal, and it promotes negative crankcase pressure. The PCV can runs inline with the PCV valve and retains factory function; no inline check valve is needed because the cans are pressure sealed, so a direct intake manifold connection is permitted. Direct fitment using factory holes, no cutting or drilling. Check fluid level with the dipstick starting around 3 to 4 weeks and empty as needed by unscrewing the reservoir or with the optional Petcock Drain Kit. Excessive oil collection can indicate an engine issue worth investigating. One dual catch can kit per order.