grntrex

ok i finally found out why i have 4 main plugs from the shock tower. the extra plug is for the heated O2 sensor and extra egr stuff. when i put my b16 in will it matter if i run a 5 wire O2 sensor(the heated 1) or do i need to modify it somehow? and since i am not worried about the egr stuff can i leave it all disconnected or do i have to use it all? any info would be helpful