<b>Ensun</b> is an Aftermarket Brand, Provide OE Quality Aftermarket Parts.<br><br> <b>2 Years Warranty</b><br><br> <b>Return and Refund Policy:</b> We only Warranty the Cost of the Parts, Any installation or other fees are non-refundable.<br><br> <b>Package Included:</b> 1 Pcs Crankcase Vent Hose (11157522931) + 1 Pcs Crankcase Breather Hose (11617559530) + 1 Pcs Crankcase Breather Hose (11157527570 / 11157567801) + 1 Pcs Oil Separator (11617531423) <br><br><b>Compatibnility</b><br><br> N52 B30 BF<br><br> N52 B30 A<br><br> N52 B25 A<br><br> For BMW 7 (E65, E66, E67) 2001-<br><br> For BMW Z4 (E85) 2003-<br><br> For BMW 5 (E60) 2003-2010<br><br> For BMW 5 Touring (E61) 2004-<br><br> For BMW 6 (E63) 2004-<br><br> For BMW 6 Convertible (E64) 2004-<br><br> For BMW 3 (E90) 2005-2011<br><br> For BMW 3 Touring (E91) 2005-2012<br><br> For BMW Z4 Coupe (E86) 2006-<br><br> For BMW 1 (E87) 2003-2013