I bought a C5 last friday and took it to the track on thursday. I was supprised it ran a 13.3 @ 104 bone stock. This week I have added a SLP cat back and a SLP CAI. As a guy who has drag raced for years I was shocked by the C5s stock performance. I can't wait for the results after I am done with my mods! Like you are ever done![sm=gears.gif]

 

get your car programmed with the mods you mentioned and 100% you will be in the 12s all day without any problem