Cadillac CTS First Generation Forum - 2003 - 2007
i was looking at getting a K&N intake (57 series) for my 2006 3.6L but had a few q's.
first, driving in the winter, with temps being anywhere from 0*C-20*C (sometimes down to -30*C at night) would i be better to put the stock air box back on in the winter? or does it not matter?
second, guy in...