{shake head at thread}

Like kevin said, any b-series header will work. 1.6 headers (like from a 99 Civic Si or Del Sol Vtec) will give you more ground clearance then a 1.8 header. Do know that if the car is obd0 it used 2 o2s while obd1 and up cars uses only 1 so will have to do something with the other o2 if you plan on staying obd0.