I installed these shorties on a 2008 Chrysler 300c. The only complaint I have is the gaskets that come with this system. I had exhaust damage after driving less than 100 km. This caused another four hours of work. I had to take the manifolds back off and scrape off the gasket that was burned due to an exhaust leak on the manifolds. I had to buy metal gaskets from the aftermarket that were similar to the stock gaskets.