is the s-pipe the only thing special needed to do this conversion. I am doing this to save money.

 

You'll need and S-pipe, a single cat or OR pipe and O2 simms or programming unless you don't mind the SES light.

Oh and an EGR tube extension unless you can find some way to make the EGR tube reach the header, I couldn't. Also an extension to the AIR fitting for the driver side. I got both of the extensions pieces with SLP's install kit. Of course I've since deleted both EGR and AIR anyway so most of that kit was a waste