Well I decided this was the best option for the look I wanted in my Racer. Didn’t know much about RP tuning, not many reviews. But I must say it’s a solid piece. Well made, and sounds great. It has sound deadening material on the inside. And I kept my flapper installed to help with the noise level. Very responsive company and shipped quickly and well packaged. If you have a question about it I’m happy to answer.