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Discussion Starter · #5 ·
Ok call me ignorant but what is this and what does it do?
So as your engine runs a little bit of oil and fuel vapor slip out without being combusted and your pcv and ccv route these back into your intake to be combusted for emission reasons. However this gunks up your intake manifolds over time so putting a catch can I between the valve and the intake filters out that oil and fuel vapor. GDI engines like ours are especially bad.
 

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Discussion Starter · #13 ·
Probably nothing. I just think the ones I got are more aestheticlly pleasing. Plus they have custom brackets for the K5 where as the Amazon one you'll have to make your own bracket 🤷
 

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2022 K5 GT Line Premium AWD
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excuse my ignorance; but what does this catch can do that much cheaper doesn't? Amazon $26

The important part that you can't see is the baffling inside the catch can. Likely the cheaper one is not as efficient at separating the oil from the air mixture and/or not regulating the systems pressure properly. Not to mention the original set is a dual can system. If you put a catch can on that doesn't have decent baffling, it will just route everything back into the intake with no pressure management, which is not good
 
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