1997 and Newer LSx, LT4 Valve Cover Breather This valve cover breather assembly replaces the original oil fill tube on the passenger side factory valve cover. Part Number: MBR0003 Price: $69.99
Universal Valve Cover Breather This valve cover breather is designed to fit a standard PCV rubber grommet with the 3/4" opening. It is a press-fit (just like a PCV valve) and installs in seconds. Part Number: MBR0016 Price: $46.99
Valve Cover Adapter 1997 and Newer LSx 1997 and Newer LSx including G8 & 2010 Camaro SS, LT4, 1989 Turbo Trans Am, Supercharged 3800 Series II, Ecotec 4 cylinder Part Number: MBR0003-10AN Price: $39.99
Valve Cover Adapter Various Mopar Various Mopar Applications Including 2008 & Newer 5.7L & 6.1L Hemi Part Number: MBR0012-10AN Price: $39.99
Valve Cover Adapter, 10 AN Fits Aftermarket Valve Covers with 1 5/16"-12 Screw-in Thread, Including Holley Cast LSx Covers Part Number: MBR0015-10AN Price: $39.99