I do not have one but have read the feedback from some of the Hotchkis team that are running Mopars. They have said that after doing the analysis and construction, they ended up with a piece that weighs almost as much as the stock K, but it provides more run under the car than the factory unit. However, I don't think any of them are using it in their cars yet. Since these cars are the owners and not the companies cars, I don't know if that is an influence on their decision to (not) use them.