Wanting to upgrade my entire exhaust from header back. My automobile has a 94 JDM GSR swap, and I'm wanting to use a header for a 92 Integra as opposed to a 94+. I'd like to use a 92-93 LS or GSR header so I don't have to worry about gaps or fabbing up test pipes. So really, is there a difference between the exhaust port arrangement on the B-Series (B18C vs. B18A1 vs. B17A1) or would it bolt right up?

Also, anyone know if the majority of these basic headers around (JDM DC, Megan, etc.) with the 2.5" collector will bolt to an OEM type converter, or if they require a flange of 2.5" to connect with?

TIA!

 

anybody?

 

Im not sure what header I had on there, the guy I bought it from said it was a CTR header.

 

The actual exhaust ports/bolt patterns are the same. Thus the DA header will bolt to it and the 2.5" headers will NOT bolt to the stock cat.