Its a bad idea to put an atmospheric bov on the saab, yes. You would need to buy a recirculating "diverter valve". the Saab requires that the air not be dumped into the atmosphere, it misses it when it goes bye bye and makes your ecu angry. hope this helps

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JDM AWD Turbocharged Madness
The "replacement for displacement" is measured in 'psi'!
"You can lose a lot of money chasing women. But you'll never lose a woman chasing money." -A man much wiser than I