Hey World , Im New here , I something I need some answers to , I own a 1998 Ek civic Hatch Dx model , With the d16y7 etc , well yea I got a 4-1 header i ordered , and I heard The car will run like **** if I just plug in one o2 sensor into the single bung my header brings , What size bung do I need for my other o2 so i can weld it into one of the main runner tubes on the header , and will the so called " cel delete 90 degree spacers work to trick my ecu into thinking its reading a actual cat?? , because I plan on just running straight piped , Any help would really be appreciated

 

all cat delete spacers do is put the 2nd o2 sensor further away from the main exhaust stream fooling the ecu that the cat is effectively removing co2 its a cheap and simple fix until some one checks and its its a transport official watch them write out tickets. your car your choice. m18 1.5 IIRC

 

JEGS O2 Sensor Weld Fittings & Plugs | JEGS

 

Alright I got it , but nahh to be honest In Florida were I live cops dont give a crap about what your car sounds like or what mods it has lol they only care if they catch u doing burnouts or racing or doing other stupid things hahh , but most dont even know what an o2 sensor is lol so im good