ok I have been irresponsible and it is time to make the stang more street legit I have longtubes with no cats with an x pipe sounds great but I need to get either temporary cats or a perm set up I also need a kit with extended wires for a set of o2s would I need all 4 o2s or just the 2 in the cats, what would the stangnet techs recommend for the best route of attack on this ? also everything is welded not bolted