Wow really. I had guy telling me that worked for Hennessey how great their stuff was. I guess thats why he worked there LOL. I'm definitely gonna have to look into the rotors. Great forum here guys and thanks for the info.
Google "Hennessey scam"
Or read this, which is one of the many shady stories about Hennessey circling the net,
Efool Gets Punked On His Own Board - Chrysler 300C Forum: 300C & SRT8 Forums
Most of the shady stuff you read about happened a few years ago, and according to Hennessey, things have changed. Its still not a gamble I would risk my money with...