I would prob. look into silicone (Stillen) or hard pipes from [ [ www.CZP.us ] ] since your other 3 wont be far behind given their age.
LIST: 14463-40P01 Hose-air Inlet $44.91 Driver's Side To Turbo 14463-40P04 Hose-air Inlet $53.72 Driver's Side to TB 14463-40P11 Hose-air Inlet $44.91 Driver's Side To Turbo 14463-40P17 Hose Air Inlet $53.72 Pass's Side to TB