O2 sensor problem.....DID search

[johna_99_99]

ok guys i have a redtop sr20det that i just got and love to this point.....i also had the megan racing(i think) turbo extension installed......now the redtop O2 sensor that i have is way to thin to screw into the extension.....i searched all around but cant find an answer as to what i need....i heard people talking about a thin o2 sensor....so im guessing theres a wide? the guy that installed it said i needed a blacktop o2 sensor? i dont know......hope u guys can help.....thanks

[johna_99_99]

i heard u can use one from an 87 300zx turbo but im not sure if this is the one i need...it has to be wide