Radium

The best Radium catch can setup for a Scion FR-S, Subaru BRZ, or Toyota 86 is the kit that matches how complete you want the system to be: a crankcase vent side catch can kit, a PCV side catch can kit, or the dual catch can kit that covers both sides in one package. All three kits in this collection are listed for the FR-S, BRZ, and 86 platform, so choose by coverage rather than by fitment hunting.

A catch can sits in the engine's crankcase ventilation path and collects oil vapor and moisture before they can reach the intake tract, where they would otherwise leave deposits over time. Engines vent from more than one point, which is why this platform gets separate crankcase vent side and PCV side kits — each one handles a different part of the ventilation system. The dual kit simply bundles both sides for owners who want complete coverage in a single purchase. Compare these kits against the wider oil system catalog and the parts listed for the 2013+ BRZ, FR-S, and GT-86 before you decide.

These three kits come from Radium Engineering, the brand's main collection at JDMuscle, where the catalog runs to hundreds of fuel and fluid-management parts — fuel rails, surge tanks, regulators, and catch cans built as engineered systems rather than universal cans with generic brackets. That systems approach shows here: instead of one can for every car, the FR-S, BRZ, and 86 get side-specific kits and a combined dual option, so the mounting and plumbing are planned around this engine bay.

Owners planning supporting work have two more brands to know. Mishimoto is best known at JDMuscle for cooling — radiators, intercoolers, and hoses — and its catalog is the usual next stop when a catch can is part of a broader engine bay refresh; see the cooling collection. Perrin Performance is the Subaru-platform specialist whose catalog covers the BRZ side of this platform with intakes, engine parts, and accessories, making it a useful cross-shop for bolt-ons bought alongside a can. The fuel systems range completes the picture for fluid plumbing, and our roundup of bolt-on mods for the Subaru BRZ puts a catch can in context with the rest of a first-stage build.

Do I need one catch can kit or the dual kit?

Each single kit covers one side of the ventilation system — crankcase vent or PCV. The dual kit covers both sides in one package, so choose it if you want complete coverage without ordering and plumbing two separate kits.

Will these kits fit all years of FR-S, BRZ, and 86?

The kits are listed for the FR-S, BRZ, and 86 platform, but engine bays and equipment can change across model years and generations. Check your year and model against the product listing before ordering.

How hard is a catch can kit to install?

Platform-specific kits are a hand-tool install for experienced DIYers: mount the can and route the supplied lines, keep the factory hoses, and re-check connections after the first heat cycles.

How often does a catch can need emptying?

Check it at every oil change at minimum, and more often in cold weather or on short-trip driving, when more moisture collects. How fast a can fills varies by engine and use.