I know this topic has been brought up many times and I have tried many searches but I cannot find the information I need.

I realize the jdm type R 4-1 header does not directly bolt up to 94-99 GSR exhausts but I have a 2000 GSR. Is this header a direct fit on my stock exhaust or do I need a new cat/flange?

Looking to purchase this header soon and just trying to do my research. Sorry about the redundant topic.

Thanks

 

I know someone knows the answer to this. Should I try a different forum?

 

it will not bolt up right without a bigger flange.

 

weld a bigger flange onto the stock cat and I should be fine?

 

best thing would be get a tapered, high flow cat.
btw, this is what will happen with a stock flange.
https://honda-tech.com/zerothread?id=1116069

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtec03 &raquo;</TD></TR><TR><TD CLASS="quote">it will not bolt up right without a bigger flange.</TD></TR></TABLE>
i agree, but if i were you, i would just upgrade to a bigger exaust with that header....or just invest in a jdm itr catback exaust(2.35') i believe..
just my .02