Best to leave the turn signals alone. They work and the size is a safety thing. I saw a bike today where the turn signals were about the size of a bottle cap. I can see them, but that's because I look for them. I can't imagine that some car only driver would notice them.
Also there seems to be quality issues. I can't understand why one would take off perfectly good quality parts to replace them with inferior junk. That also applies to exhausts, silly looking handle bars, ugly seats and other parts of the bike.
This bike is lovely as is. It handles great, has some guts and is lightweight. I really don't get why some people feel the need to turn it into a fugly thing that handles like ****.