is it ok to run a testpipe without plugging in the O2 sensor or am i just gonna have the check engine light on forever?

 

The CEL will be on, but it won't do anything to the performance!!

 

try throwing some foil on that bad boy and see what happens

 

that's all i needed to know! thx alot guys
btw, what you mean by throwing foil on there?
n00b

 

Yep. Foil works. I followed the advice of a technician that told me to remove the sensor from the converter, wrap it in foil, and a small plastic bag and ty-wrap it to the shifter stabilizer bar. No check engine lights here.