- CNC machined billet aluminium adaptor to fit a 38mm breather filter into Mazda Rotary engines.
- Direct fit into the 29mm centre plate hole in Mazda 12A, 13B and 20B engines.
- Easily remove the breather filter to top up your engine oil.
- Eliminates the need for a remote catch can.
- 38mm breather filters are available from our other listings.