Look closely at what you wrote " CAI+tune only 12.877 @ 106.79 w/ 1.819" With tune being very important. Diablo chip with the tune is another beast entirely. Adding more fuel and higher shift points makes loads more power. That is why stock for stock is the only way to test these cars. And that is why I said "after mods its who wants to throw the most money at it". So 2009 to 2009. Stock for stock. The Challenger has alot of potential as does the Mustang when you start modding. The facts will be what they are. No matter how you spin it or me. 13.1 shows what is possible for the R/T in the right hands. Even SS owners want to compare to the R/T and not the similar SRT-8. We'll see, we'll see.