I had a similar concern about volume of the canister because they are available in sizes from 500ml up to 3l. Which to chose and why?
The other trick seemed to be specifying the size of the diaphragm and hose nipples.This seemed critical because Porsche use the same(??) AOS for 2.5.2.7 and 3.2l. So the difference is the hoses? Does one have a restrictor in it for specific engine sizes? I have a 3.2L and there are no restrictors in it's OEM hoses. Or is it the engine breather fitting that varies ? Stelan's kit mentions this.Note his kit also plugs one hole in the crankcase and deletes the corresponding hose.
There are inexpensive generic versions of the Mann ProVent -like this:
Universal Racing Engine Oil Catch Tank Can Reservoir Breather Stainless Filter | eBay
and the genuine article here:
https://www.amazon.com/Mann-Hummel-6257511-Provent-200/dp/B01F2NZ6RQ
They have both been on my List for months . I dismissed them because they need modifying to enlarge the drain. Moroso & MishiMoto have some that look easier to modify.
For me the big reason to persevere with this project is because even the OEM replacements can be defective.But you won't know that until you have done all the work of R&R.
I hope Stelan and Jake can figure something out. Based on his response to Jake, it seems like Stelan's system is "One size fits all M96" ??
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