Hey guys, got a questions. Will the race header from a 2.2L Ecotec Cavalier bolt up on my 07' 2.2L Ecotec Cobalt LS. I need to order for christmas and wanted to find out for sure...thanks

 

According to the parts book both the 2004 Cavy 2.2 Ecotec and the 2007 Cobalt 2.2 Ecotec use the same exhaust manifold gasket -- PN 12589453. Make sure you do not have SAI (AIR) on your 2.2 either -- if you do the exhaust manifold is a steel welded asembly not cast iron. Since the engines use the same gasket the header for a 2004 CAVY with an "F" coded 2.2 Ecotec should fit the cylinder head of the 2007 non SAI 2.2 ecotec. Don't know about the downpipe though -- you'll probably have to fab something to make it fit the downpipe.