Will it fit? I am looking at those 90-91 Megan Racing headers, I had one for my old 91 Teg and now have a b16a swapped 1990 Civic and want to know if that header would fit this car. I dont have that header, it went with the Teg, so I need to buy a new one. I want this because its a 4-2-1, way easier to install. Dont want a 4-1 one piece. And also, since their are 2 O2 sensors on the B16A, what would I have to do? Install a second O2 bung? Damn I love that word.

 

Come on, SOMEONE must know this. And yes I know you can make anything fit anything, but I am talking about taking the header and just bolting it on, no clearance issues.

 

it will bolt up but will sit lower as the b18 is a taller moter than the b16 and you need to get another bung welded in for the other o2.