I want to install a off road midpipe on my 95 gts, everything else is stock. The thing that worries me is that once i do this i will be getting a check engine light or something of that nature. is there a way to get rid of this, do i need mil eliminators (if so were would i buy them, only can find them for 96 and up) and what about the smog pump hose connection. is there any negative affects for the car ( like check engine light) that will arise if it is not connected.