Header fitment question, B20 swap

[tman327]

Whats up, Have a question in regards to header fitment. My Integra has a B20B, was curious if the header for B18 has same fitment as B20?

 

[nicoalex2]

B18b is the same
B18c will work but will need an extension

 

[DAmonzt3r]

B18b is the same
B18c will work but will need an extension

x2

 

[BrokenTalon27]

The exhaust flange pattern is the same. You might have issue fitting a header not designed for the DA chassis. It had clearance issues at the crossmember.

 

[tman327]

Thanks, appreciate the input

 

[j13]

B18A1 Yes
B18B1 Yes
B18C1 No

 

[BrokenTalon27]

B18A1 Yes
B18B1 Yes
B18C1 No

Why do you say the C1 header wont fit?

 

[j13]

Why do you say the C1 header wont fit?

Because he'll have to add some piping to push the Cat forward, so it will reach the flange on the header

It will work, but it is not a direct bolt-on.

 

[BrokenTalon27]

Because he'll have to add some piping to push the Cat forward, so it will reach the flange on the header

It will work, but it is not a direct bolt-on.

Not all of the GSR headers were like that. I think it was the '00 and '01 GSR header that are the exact same length as the rest of the Integra header models. I'm pretty sure the ones you're referring to are only the 94-99 spec header. I may be off on the years, but I know that there was one incarnation that was the same length as the LS header.

 

[j13]

Not all of the GSR headers were like that. I think it was the '00 and '01 GSR header that are the exact same length as the rest of the Integra header models. I'm pretty sure the ones you're referring to are only the 94-99 spec header. I may be off on the years, but I know that there was one incarnation that was the same length as the LS header.