Was debating about the best choice of aftermarket mats for my C4S (cobalt blue with graphite gray interior). After looking after the samples sent to me by Drew at CocoMats, I went with the Furstil M+S Carbon (#135). I couldn't be happier with the choice. The mat is incredibly well made, thin, fits tightly, includes Velcro backing in the OEM locations, and looks fantastic with my interior. Pricey but well worth it given the quality.

Here are a couple of pics.

 

Love my Coco Mats in black with red dots. Turned out to be a perfect match for Orient Red. Really pumps up the interior. I compliments on them all the time. Drew is a great guy to work with. When he learned it was a 996 his question was, "coupe, cab, or targa?' He has different templates for each!

And as the price is about the same as OEM there really isn't a reason not to get them when you need new mats.

Do watch out for cheap ones from catalogs and resellers. Go directly to http://www.cocomats.com