2005-2010 Duramax LLY/LBZ/LMM SoCal Billet Aluminum Upper Valve Cover Breather Location:Center Available in a variety of

Available in a variety of colors

Full Emissions Delete when used with FLO-21126 Or FLO-21127

With a 15 second refinish per fuel injector seat

7L diesel engine with enough fuel for multiple fueling upgrades

2005-2010 Duramax LLY/LBZ/LMM SoCal Billet Aluminum Upper Valve Cover Breather Location:Center Available in a variety ofBillet Aluminum Upper Valve Cover for Duramax LLY LBZ LMM engines. Uses stock bolts, gaskets and grommets. Sold as a pair. Optional drill and tap for 12 AN breather holes. These are machined to a mirror like finish. Choose the polished option for that extra bit of sparkle. This is what all of the best dressed Duramax engines are wearing this year!