Originally Posted by bigaudiofanat

Very good, I have installed them twice in the z and both times they are awesome. Their tweeters come with a bracket that lines up directly with 2 mounting points of the factory ones. Make sure to set your crossover to - db's its either 3 or 6, because this will take care of some of the harshness.

Also, they sound great with a head unit, fantastic with an amp.