Wow, do these sound amazing! I had two installed, with some bigger pipes. Such a deep tone. They're loud on cold start and during hard acceleration, but not too loud. Although my neighbor did say the sound startled him the other morning. Inside the car sounds great. There's a minimal amount of drone. They flow much better than the stock suitcase muffler that was on my car. Very happy with these. Also a great price. With the custom install and two mufflers and new tips it cost about $700. I am so happy with these mufflers.
