I recently bought an 87 GN. It is essentially stock with a couple of obvious exceptions. The air intake system might be efficient but it looks pathetic. It looks like one of those aluminum foil type silver flex tubes from a clothes dryer exhaust vent. It has a KN filter literally bailing-wired to a support behind the grill. I would like to put a high quality system on it or put it back stock. Would appreciate your opinions of what intake systems are considered to be the best or should I just go back stock.