Trying to upgrade wire harness but unsure which pair to get and which is easiest to install.And where can I buy a set of either?And the output in brightness of the two?

 

All your questions will be answered here. Please do not post more questions in here regarding this subject, I assure you that EVERYTHING will be answered in that thread. All you gotta do is read it in its entirety.

 

I mean really, you didn't see that thread right in front of your face?