any b series header will work b18a/b/c b16a/b look on ebay they have cheap-expensive headers for your motor, but i would suggest jumping from obd0 to obd1 otherwise you will have to drill a hole and weld on another o2 sensor bung because the obd0 b16a has to have both to run properly, to upgrade it to obd1 all you need is a conversion harness for 50$ and obd1 b16 ecu and dizzy, its a pretty straight forward install