M50 / M52 / S50 / S52 Aluminum Valve Cover With 2 10AN Breather / Catch Can Fittings

When turbocharging these engines, you get increased crankcase pressures leading to more oil blow-by. The factory PCV systems can also be restrictive, leaky and failure prone.

Top Mount turbo setups put the hot compressor housing, as well as the downpipe right next to the valve cover, so it's recommended to upgrade to a metal valve cover. With the current existing options being Billet for $1500+ or 30 year old magnesium covers with thread on "bulkhead" style AN fittings (that can back off from vibrations and cause catastrophic damage to your engine), we saw a gap in the market and decided to fill it!

We solve all of these issues with our modified M5X Aluminum Valve Covers, fitted with 2 welded on 10AN Aluminum Fittings to ensure your engine can breathe the way it needs to.

Underneath you'll find our homemade baffle plate which houses a coarse aluminum wool that aids in Air/Oil separation, as well as keeping solid particles out.

Valve Covers can be powder or ceramic coated in a large variety of colors, or sold raw/unfinished for you to color yourself.

For now these are made to order, so please allow 7-10 business days before being shipped out.

Fits on these cars:

BMW 325i

• 1993 BMW 325i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M20 Gas
  
• 1993 BMW 325i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M20 Gas
  
• 1993 BMW 325i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1993 BMW 325i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas
  
• 1994 BMW 325i Engine Valve Cover
  Automatic RWD Convertible 2.5L L6 M50TU Gas
  
• 1994 BMW 325i Engine Valve Cover
  Manual RWD Convertible 2.5L L6 M50TU Gas
  
• 1994 BMW 325i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1994 BMW 325i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas
  
• 1995 BMW 325i Engine Valve Cover
  Automatic RWD Convertible 2.5L L6 M50TU Gas
  
• 1995 BMW 325i Engine Valve Cover
  Manual RWD Convertible 2.5L L6 M50TU Gas
  
• 1995 BMW 325i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1995 BMW 325i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas

BMW 325is

• 1993 BMW 325is Engine Valve Cover
  Automatic RWD Coupe 2.5L L6 M50TU Gas
  
• 1993 BMW 325is Engine Valve Cover
  Manual RWD Coupe 2.5L L6 M50TU Gas
  
• 1994 BMW 325is Engine Valve Cover
  Automatic RWD Coupe 2.5L L6 M50TU Gas
  
• 1994 BMW 325is Engine Valve Cover
  Manual RWD Coupe 2.5L L6 M50TU Gas
  
• 1995 BMW 325is Engine Valve Cover
  Automatic RWD Coupe 2.5L L6 M50TU Gas
  
• 1995 BMW 325is Engine Valve Cover
  Manual RWD Coupe 2.5L L6 M50TU Gas

BMW 525i

• 1993 BMW 525i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1993 BMW 525i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas
  
• 1993 BMW 525i Engine Valve Cover
  Automatic RWD Wagon 2.5L L6 M50TU Gas
  
• 1993 BMW 525i Engine Valve Cover
  Manual RWD Wagon 2.5L L6 M50TU Gas
  
• 1994 BMW 525i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1994 BMW 525i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas
  
• 1994 BMW 525i Engine Valve Cover
  Automatic RWD Wagon 2.5L L6 M50TU Gas
  
• 1994 BMW 525i Engine Valve Cover
  Manual RWD Wagon 2.5L L6 M50TU Gas
  
• 1995 BMW 525i Engine Valve Cover
  Automatic RWD Sedan 2.5L L6 M50TU Gas
  
• 1995 BMW 525i Engine Valve Cover
  Manual RWD Sedan 2.5L L6 M50TU Gas
  
• 1995 BMW 525i Engine Valve Cover
  Automatic RWD Wagon 2.5L L6 M50TU Gas
  
• 1995 BMW 525i Engine Valve Cover
  Manual RWD Wagon 2.5L L6 M50TU Gas

BMW 525iT

• 1993 BMW 525iT Engine Valve Cover
  Automatic RWD Wagon 2.5L L6 M50TU Gas
  
• 1993 BMW 525iT Engine Valve Cover
  Manual RWD Wagon 2.5L L6 M50TU Gas

BMW M3

• 1995 BMW M3 Engine Valve Cover
  Automatic RWD Coupe 3.0L L6 S50 Gas
  
• 1995 BMW M3 Engine Valve Cover
  Manual RWD Coupe 3.0L L6 S50 Gas
  
• 1995 BMW M3 Lightweight Engine Valve Cover
  Automatic RWD Coupe 3.0L L6 S50 Gas
  
• 1995 BMW M3 Lightweight Engine Valve Cover
  Manual RWD Coupe 3.0L L6 S50 Gas

BMW 328i

• 1996 BMW 328i Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1996 BMW 328i Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1996 BMW 328i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  
  
• 1996 BMW 328i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  
  
• 1997 BMW 328i Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1997 BMW 328i Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1997 BMW 328i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  
  
• 1997 BMW 328i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  
  
• 1998 BMW 328i Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1998 BMW 328i Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1998 BMW 328i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  
  
• 1998 BMW 328i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  
  
• 1999 BMW 328i Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1999 BMW 328i Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1999 BMW 328i Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52TU Gas
  
  
• 1999 BMW 328i Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52TU Gas
  
  

BMW 328is

• 1996 BMW 328is Engine Valve Cover
  Automatic RWD Coupe 2.8L L6 M52 Gas
  
  
• 1996 BMW 328is Engine Valve Cover
  Manual RWD Coupe 2.8L L6 M52 Gas
  
  
• 1997 BMW 328is Engine Valve Cover
  Automatic RWD Coupe 2.8L L6 M52 Gas
  
  
• 1997 BMW 328is Engine Valve Cover
  Manual RWD Coupe 2.8L L6 M52 Gas
  
  
• 1998 BMW 328is Engine Valve Cover
  Automatic RWD Coupe 2.8L L6 M52 Gas
  
  
• 1998 BMW 328is Engine Valve Cover
  Manual RWD Coupe 2.8L L6 M52 Gas
  
  
• 1999 BMW 328is Engine Valve Cover
  Automatic RWD Coupe 2.8L L6 M52 Gas
  
  
• 1999 BMW 328is Engine Valve Cover
  Manual RWD Coupe 2.8L L6 M52 Gas
  
  

BMW 528i

• 1997 BMW 528i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  
  
• 1997 BMW 528i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  
  
• 1998 BMW 528i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  
  
• 1998 BMW 528i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  
  
• 1998 BMW 528i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52 Gas
  Notes: thru 08/98
• 1998 BMW 528i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52 Gas
  Notes: thru 08/98
• 1999 BMW 528i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52TU Gas
  
  
• 1999 BMW 528i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52TU Gas
  
  
• 1999 BMW 528i Engine Valve Cover
  Automatic RWD Sedan 2.8L L6 M52TU Gas
  Notes: thru 08/98
• 1999 BMW 528i Engine Valve Cover
  Manual RWD Sedan 2.8L L6 M52TU Gas
  Notes: thru 08/98

BMW Z3

• 1997 BMW Z3 Roadster Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1997 BMW Z3 Roadster Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1998 BMW Z3 M Roadster Engine Valve Cover
  Manual RWD Convertible 3.2L L6 S52 Gas
  
  
• 1998 BMW Z3 Roadster Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  
  
• 1998 BMW Z3 Roadster Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  
  
• 1998 BMW Z3 Roadster Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52 Gas
  Notes: thru 08/98
• 1998 BMW Z3 Roadster Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52 Gas
  Notes: thru 08/98
• 1999 BMW Z3 M Coupe Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas
  
  
• 1999 BMW Z3 M Roadster Engine Valve Cover
  Manual RWD Convertible 3.2L L6 S52 Gas
  
  
• 1999 BMW Z3 Roadster Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52TU Gas
  
  
• 1999 BMW Z3 Roadster Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52TU Gas
  
  
• 1999 BMW Z3 Roadster Engine Valve Cover
  Automatic RWD Convertible 2.8L L6 M52TU Gas
  Notes: thru 08/98
• 1999 BMW Z3 Roadster Engine Valve Cover
  Manual RWD Convertible 2.8L L6 M52TU Gas
  Notes: thru 08/98
• 2000 BMW Z3 M Coupe Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas
  
  
• 2000 BMW Z3 M Roadster Engine Valve Cover
  Manual RWD Convertible 3.2L L6 S52 Gas
  
  

BMW 323i

• 1998 BMW 323i Engine Valve Cover
  Automatic RWD Convertible 2.5L L6 M52 Gas
  
  
• 1998 BMW 323i Engine Valve Cover
  Manual RWD Convertible 2.5L L6 M52 Gas
  
  
• 1999 BMW 323i Engine Valve Cover
  Automatic RWD Convertible 2.5L L6 M52 Gas
  
  
• 1999 BMW 323i Engine Valve Cover
  Manual RWD Convertible 2.5L L6 M52 Gas
  
  

BMW 323is

• 1998 BMW 323is Engine Valve Cover
  Automatic RWD Coupe 2.5L L6 M52 Gas
  
  
• 1998 BMW 323is Engine Valve Cover
  Manual RWD Coupe 2.5L L6 M52 Gas
  
  
• 1999 BMW 323is Engine Valve Cover
  Automatic RWD Coupe 2.5L L6 M52 Gas
  
  
• 1999 BMW 323is Engine Valve Cover
  Manual RWD Coupe 2.5L L6 M52 Gas
  
  

BMW M3

• 1996 BMW M3 Engine Valve Cover
  Automatic RWD Coupe 3.2L L6 S52 Gas
  
  
• 1996 BMW M3 Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas
  
  
• 1997 BMW M3 Engine Valve Cover
  Automatic RWD Coupe 3.2L L6 S52 Gas
  
  
• 1997 BMW M3 Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas
  
  
• 1997 BMW M3 Engine Valve Cover
  Automatic RWD Sedan 3.2L L6 S52 Gas
  
  
• 1997 BMW M3 Engine Valve Cover
  Manual RWD Sedan 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Automatic RWD Convertible 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Manual RWD Convertible 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Automatic RWD Coupe 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Automatic RWD Sedan 3.2L L6 S52 Gas
  
  
• 1998 BMW M3 Engine Valve Cover
  Manual RWD Sedan 3.2L L6 S52 Gas
  
  
• 1999 BMW M3 Engine Valve Cover
  Automatic RWD Convertible 3.2L L6 S52 Gas
  
  
• 1999 BMW M3 Engine Valve Cover
  Manual RWD Convertible 3.2L L6 S52 Gas
  
  
• 1999 BMW M3 Engine Valve Cover
  Automatic RWD Coupe 3.2L L6 S52 Gas
  
  
• 1999 BMW M3 Engine Valve Cover
  Manual RWD Coupe 3.2L L6 S52 Gas