Thousands of test miles were logged on a Subaru BRZ to determine what can setup would work the best. Mishimoto engineers found that with most vehicles, placing the catch can in the vacuum-assisted PCV system of the vehicle will yield the most amount of oil accumulation during normal and aggressive driving, while a catch can placed on the crankcase vent system on the front of the engine will yield nearly no accumulation on stock or modified vehicles. Having only one catch can tied into the PCV system on the back of the engine will, by far, work the best for the vast majority of BRZ/86 vehicles on the road. Mishimoto engineers found that a second catch can on the crankcase vent side only benefits vehicles with forced induction.
The Mishimoto BRZ/86 catch can kit uses the Mishimoto 2-Port Compact Baffled Oil Catch Can with a bronze filter and internal baffle to better separate the oil from the crankcase vapors. It also includes one direct-fit mounting bracket that is extremely easy to install and fits right-hand drive as well! The BRZ/86 catch can kit comes with two direct-fit, pre-molded hoses for ease of installation. The hoses are designed to fit right onto the 10mm PCV valve and into the 12mm port on the intake manifold. Two CNC-machined aluminium, 1/2" barb fittings connect the hoses to the can. And, like every Mishimoto oil catch can, this baffled catch can kit comes with the Mishimoto Lifetime Warranty!
Our catch cans are different from most air-oil-separator (AOS) systems on a few levels. First, our catch cans are not heated. This means that all of the blow-by is able to condense in the can, including low-octane oil vapors and contaminated fuel vapors. Most AOS systems also drain the blow-by back into the oil pan, while our catch cans trap the blow-by and keep it out of the engine permanently. If you've seen what we've seen in the bottom of our catch cans, you won't want that draining back into your oil either.



