has anyone tried then or herd anything of them there pretty cheap and i use to buy all my stuff for my srt4 on modernperformance but they dont have any proven gains for that ohh and if any one knows were i can get an msd coil for the ss/sc let me know thanks

 

I have used them many times and I consider them one of the best vendors out there.

 

Those are actually South Florida Pulley Headquarters pulleys they are selling.

 

Your cobalt ss/sc has a coil on plug ignition system that you wont ever need to replace