the "race pipe" is just a section of pipe used to bypass the cat. it goes in where the cat would go. when i bought my SDs they came with it. no need to buy one from zzp.
and to run it youd just have to delete the cat codes. http://www.nepontiac.org/forum/viewtopic.php?t=7021 ....and BTW you said your from Nh right? if you havent already you should join up to the local forum. see link