Hey,
I took off my catalytic converters and put in a 2 1/2" staright pipe in it's place. I also just plugged the 2 hoses that connect to the metal pipe off the side of the last cat. Will this hurt anything ??? am i hurting performance without knowing it? please tell me if you know or if there is a better way to do it thanks

 

Yes your auxilary ports will now not function. You need to find a way to operate them properly.

 

how do i make my auxiliary ports open now that the cats are gone??? any advice

 

cheap way would be to wire them open but then you loose bottom end power. or www.fc3s.org has a write up on how to activate them via electric air compressor.