Does B16 headers fits bolt on in my stock exhaust?

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thecca

New Member
Hi

I got a 97 civic EX (si for canadian model)

With the d16 sohc vtec (127hp) and I want to swap a B16a2

I was wondering if the manifold+headers of the b16 will fit straight in my exhaust? (In the catalyst)


Thanks!
 

eg6sir

Supa Mod
VIP
he's asking if the b16 header will bolt up to his exhaust..

it all depends.. it may be too short or too long.. thats when you take it to a muffler shop and spend $40 to have them fix it.. but if they're equal length then it should bolt up
 

thecca

New Member
Allright!

I was more talking about the diameter of the piping .....

If it was equal or not.. I think the lenght is the same because the b16a was OEM built in thoses civic, (civic SIR) so it should be the same lenght with the civic ex!

Thanks guys
 

D16SiHatch

Active Member
they are both 2 1/4", but the diameter is not the problem. the 2 bolt flange that attaches the header to the cat are off center. you have to either cut and reweld the flange on at the correct angle, or get an omni/blox adjustable test pipe. i read somewhere recently that the 90-91 teg cats have floating flanges that allow you to turn them whichever way you need them, but i haven't been able to verify this personally.
 
in the rush to let you know .... and yes they gona bolt up like butter .... at least that s how it owrked for me and i had a jdm b16A2 motor with the 00 wiring harness and my boy repined it , to work but my motor was a japanase b16 from ja--paaaaaaaanaa durrrrrrr but the exausta does work out well i went 2.5 inches from cat back and as far as the cat goes i li ve in florida now and there is now laws regarding the exaust
but when i lived i pa and i honestly had the same set up as i do now and what i did was took out my o2 sensor .. smoked a dubie

and put a condoem on the o2 sensor( im a bad speller)
which was a commonly sold item at auto zone which is a metal condom
literaly its a metal condom
and it will settle your electrical issues .. .
ps ...... niggers

aaaaaaarrrrrgggggg nigggggggggggggeeeeeeeeerrrrrrr


pppppppppoooooooooiiiiiiiiiiiiresresssssssssss
 

jamesA

Thank you for your business.
VIP
they are both 2 1/4", but the diameter is not the problem. the 2 bolt flange that attaches the header to the cat are off center. you have to either cut and reweld the flange on at the correct angle, or get an omni/blox adjustable test pipe.

Exactly. I actually had to have my cat flange cut and welded to fit on my WSII catback.
 

thecca

New Member
Is it wayyyyy off or it's just a little bit?

http://www.1993-honda-civic.com/images/08/jan/d16_engine_swap_01680.jpg

Here's a picture of a civic like mine, with a stock d16 in it

http://i205.photobucket.com/albums/bb284/J-Pro_Motorsports/DSC09500.jpg

And here's a picture of some b16 headers

The 2 holes looks pretty centered..


But may-be they are a little bit off by the left?

1235023114_d16b16cat.JPG


Correct me if I'm wrong..
 

D16SiHatch

Active Member
the b16 header flange appears to be angled differently than b18 ls headers cause mine doesn't sit like that, and i assumed all b-series header flange angles would be the same... regardless, it appears that the bolt holes are off by enough to prevent you from bolting it up properly. you can see in this pic how i ghetto rigged my old stock header to my old exhaust due to the holes not lining up. i have a new header and new catback now, with a blox test pipe.

97537997fx2.jpg
 
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