I am wanting to install my header and DP this weekend. I have a ZZP 3" - 2.5" DP with an extra bung for a wideband. I currently don't have a wideband sensor so I'll need to plug the extra hole. I have search all over town trying to find a plug to fit and cant' find anything. Does anyone know the thread size?!?!?!?

Thanks,
Ryan

 

18mm? I think thats the size of spark plug non-foulers that I used to get rid of my CEL for my catless DP. I'm not 100% sure on that but I think they only come in 14mm and 18mm could be like 16 though. Go to autozone and look at the non-foulers. It should be the larger size then find a plug that size.

 

Thanks for the info. I went to a hardware store and all they had was up to 16mm and that was just barely to small. So i'm thinking youre right about it being 18mm. Now I just ahve to find a place that carries something that size......Thanks again for the info.

Ryan