sup,
i have a comptech 4-2-1 header, im upgrading to b18c1 due to blown motor. will my header fit hte b18c1 coming from a b16a2? thanks

 

yes

 

i dont think it will fit. the exhaust ports are different from what i have heard

 

i think it the exhaust header will fit on the b18c1....although im getting two different answers, please anymore support?

 

put it on and see if it works.

 

If he is keeping the same exhaust and header, only swapping the motor then it will bolt back up. A B16 header and GSR header stock do have a different angled flange. But his header and exhaust are both for the B16 and have already been together, so it will go back together.

 

there is your answer