After getting my new BMW, I went to J & J Auto Sound. They custom built and installed a subwoofer in my car, they also blacked out my tail lights, and tinted my front windshield. They did an excellent job with all three. Before going in, I was a little nervous, but when I saw the results I was impressed and extremely happy with the work they had done. Customer service was amazing. The tint didn't bubble or anything and it really makes the entire car look really nice.