Like mentioned above, Mac's are midlenths. (Don't know why it says shorties) As far as power goes, I put down 275hp and 308torque. Mods are:CAI, Mac's, Flowmaster catback/cutout, PCMforless tuning. It's also an Automatic.

Later
Crazy

 

Thanks all for the posts ive gotten some great info.......So anyone answer if Jet hot is the coating comapany or the actual header?

 

Nevermind i hit the link and seen that jet hot actually DOES the coating for hooker, pacesetter, mac and more. I will totaly not be wasting my time with the shorties after reading these posts. I live in Michigan where we have no emissions control. Im looking into the Mac mid lengths. I think from all your great feed back that may get me to my goal, low 12's with the cam/stal/rocker package.

 

I run 12.46 @ 113mph with Hooker shorties, stock I-pipe, bolt ons, and cam. I am a 6spd.

Low 12s should be no problem with a CC306, converter, and any headers.