Aftermarket Inline PCV or Check Valves?

[KrazyKid]

@Boxersix

http://www.jayracing.com/index.php?main_page=product_info&products_id=227

Any spring loaded fuel cell vent rollover valve works too

Or you can use Porsche 996 turbo drysump tank oil non-return valve
PN 996.207.012.73

say that 5 times fast.