do you know which part number you are looking for?
as i understand it there are different colors...
i haven't really looked into this that much but a VIN from a car that has the knob you want will make this easy
that part number comes up as an STS or SRX sapelle wood w/ ebony (black) leather... does not mention fitting a CTS, but if you are sure it will fit i'll sell it to you
current pricing is $194.29 (list price) - i can sell it for $139 plus some shipping (probably only $10)
it is available from GM at my local warehouse so it will only take me one or two days to get from GM
^ Thanks for the update. I am not certain on the parts fit at all, and to be honest, I'm not looking to drop that much money on such a frivolous mod at the time being. Thanks for checking into it! Maybe someone who has bought that part before can comment on CTS fitment?
I'm going to be doing this soon. I found that part number 19180500 is the Dark Olive Ash/Black Olive Ash shift knob from the STS-V. This would go really well for those of us that do not have the rest of the wood trim throughout (and instead have the silver/carbon-fiber-looking trim).
I'm thinking of just getting a new leather steering wheel to freshen it up and the 19180500 Dark Olive Ash shift knob. This post is definitely inspiring since it shows that the STS shift knobs do in fact fit perfectly!