I was just flipping through my new Sept. issue of D-Sport and saw this new product ad for
DressUpBolts.Com .
It looks like they make fastener kits made of titanium and stainless. They offer them in different colors for most visible fasteners in car specific kits. The press release says they make stuff like strut tower nuts, fender washers/bolts, valve cover and I'd imagine license plate and stuff like that. I checked the site and it says they just finished kits for the 370Z. There is an
engine bay kit but not much info beyond that. I'll send them a quick message and see if they can clarify here. Here is a pic of the 350/G35 kit:
Looks like it available in blue, gold, polished, green, purple and maybe natural. Just thought I'd share.