Rear fender fins
 

I always thought that the fins on my car 2011 LS were painted,because I bought the car in 2013,and they look as if they were sprayed on,well finding out now that they aren't, so my car is green with white stripes,but the fins are black,but wondering if I get the new black fins will stick good with the old ones,or just spray them,and in that case might think about spraying them white.has anyone spray theirs.

Fins
 

What are fender fins?

Gills?

A pic would help...

Rear fenders? Did you mean rear quarter panels?

Yes,I call them fins,but gills would be the same thing,and yes the rear quarter panel,and the reason I thought they were painted is on all of them,one side was dark black,and fades out to a real light black.will take a pic.

The gills are body color on a stock car. Anything else is aftermarket.

Here's a pic.

Those look like vinyl over the stock fender, you can peel them off, and get updated vinyl ones.

there the black fade ones lots of places have them like phastek

Ok,cool that will work,I saw some on autoanything,but they were solid black,which I don't think would look very good considering I have white racing stripes.so thanks for the advise.

Those are the SLP gill decals. Unfortunately they are discontinued. There are other fadded out there, I think pfyc has them.

looks pretty good though...

Here is the only place I can find the faded gills. https://www.bmcextremecustoms.net/20...decal2010.html

EBay has them for $40

The bmc are not the same as the ones you are asking about. You are asking about the slp type.