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Has anyone installed the boomba catch cans on the N? Im a bit confused as to the difference between the stage 1 and 2 versions and if you need both of them. Supposedly stage 2 is the more important one?
 

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What's the difference between CCV intake and PVC? How are installs different? What makes one different from the other? I am very curious too, but I have not made a post about this.
 

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The PCV catch can runs inline with the PCV (positive crankcase ventilation) valve and retains its factory function. When the intake manifold pressure is close to or greater than atmospheric pressure, the PCV "check" valve closes and, thus, this hose experiences no flow. Conversely, the PCV hose will experience "metered" vacuum when the engine is idling, steady state cruising, and decelerating. This would normally draw unwanted crankcase vapor, unspent fuel, and oil sludge into the intake manifold immediately after a high load run. Note: No inline check valve is required since Radium catch cans are pressure sealed. This means a direct intake manifold connection is permitted.

The CCV catch can runs inline with the crankcase vent port. At low loads it experiences atmospheric pressure, but when the engine is at high load (WOT), this line will experience high flow out of the crankcase. This would normally lead to oil and sludge accumulation in the air filter intake pipe. Oil accumulation will occur in the intercooler which lowers the thermal efficiency properties of the heat exchanger and leads to decreased performance.
 

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Thanks for the explanation! I've heard some back and forward about whether or not this car should have a catch can. What are your thoughts? Is it worth investing in a catch can for this car or no?
 

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Thanks for the explanation! I've heard some back and forward about whether or not this car should have a catch can. What are your thoughts? Is it worth investing in a catch can for this car or no?
If you're back and forth, get the stage 2. It's the most beneficial. We see it collecting quite a lot after only a few thousand miles.
 

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If you're back and forth, get the stage 2. It's the most beneficial. We see it collecting quite a lot after only a few thousand miles.
Will you guys be making an installation video for the stage 2 catch can? Just got mine in the mail but am waiting to get my car back with its new transmission 🤓
 
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