i think it is the pipe thats connects to the back of the intake and the passenger side header. i striped the bolt on the header so i just cut the pipe. i can put in another one on but if i dont need it then i wont even bother.

 

You can't just cut the pipe, you'll end up with an intake leak (when the EGR valve opens) and an exhaust leak that can throw off your O2 sensor on the passenger side. If you choose not to use the EGR system, you need to block off both holes. You should be able to repair the bolt/hole on the header.

 

i was going to block it off, would that hurt my engine in any kind of way and what about proformance?

 

It won't hurt performance to block it off, but it also doesn't hurt performance to have it working correctly too. If you have a 96 or 97 your OBDII system will probably throw a SES code.