I need it to pass smog with the referee. Will the stock header from a 2000 civic si bolt up to a 98 gsr. thanks.

 

i believe that it is the same bolt pattern but the only difference is the length of the runners. the b16's may be too short

 

it'll work fine, i've used b16 manifold on ls/vtec and straight ls as well.

 

it will bolt up to the head but not sure about the car.

 

back from the dead because I used search.

will the header length be the same or will I have to modify the cat length.

tia

 

If it is a B-series motor or head it will bolt up. The two blocks are the same size. garenteed to fit.

 

any bseries header will fit any any bseries head. the only problem is the length of the header and wether or not it has two o2 sensors.
hth

 

will a stock itr header bolt up to a ls? and if so will it make any gains over stock ls header?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1quickLS &raquo;</TD></TR><TR><TD CLASS="quote">will a stock itr header bolt up to a ls? and if so will it make any gains over stock ls header?</TD></TR></TABLE>
ITR header will bolt up and be the correct length as the LS header.