This simplifies install, making our V3 AOS Kits take half as long as any other AOS system on the market to bolt up. Lastly, proximity to the engine heats the system so that it no longer requires a coolant bypass line. Each chamber has it's own labyrinth inside, which increases the separation efficiency from that of the V2. This means clean air is always entering the valve covers. When in vacuum, the dirty air from the crankcase is sucked out via the PCV valve through one chamber of our V3, and when in boost the dirty air is sucked out of the crankcase through the second chamber of our V3. Since the V3 utilizes the PCV system, the V3 has 2 chambers inside the canister: one sees vacuum form the PCV valve, and the other sees the pressure from the oil system. This is a required smog component in California*. Unlike the V2, it does not delete your PCV valve during installation. In most recent years, we have released our best design yet: the V3. *Please note, since the V2 AOS Kit removes the PCV valve from the smog system, it is for off-road use only in CA. The V2 features an added coolant bypass line to keep the canister at operating temps at all times, solving the condensation issue. We recalled the V1 and replaced it with the V2. Water and oil do not mix, so this environment was not allowing the canister to perform it's job of separating the two. Cold air from the hood scoop would hit the canister right on, creating the condensation and water to form on the inside. When the product was launched worldwide, colder and frozen climates experienced condensation. Due to our warmer climate here in Southern California, our testing did not cover frozen climates. Adapting concepts from other manufacturers solutions, we engineered our own swirl pot solution to keeping oil out of the intake. We were suffering consistent engine failures due to oil starvation and excessive detonation. In 2005, the V1 was our original design on our race vehicles. What are the differences between versions? Each canister is put through a pressure test post-manufacturing. The Crawford AOS is the only design that forces oil through a labyrinth system, with each change of direction increasing the separation efficiency. #Killer bee oil pickup sti install install
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