thanx


Modified by SubTitle at 8:20 PM 10/16/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SubTitle &raquo;</TD></TR><TR><TD CLASS="quote">buddy is picking up a USDM type R header and wants to know if hes gunna have to modify his stock cat with a 2.5 flange to make it connect</TD></TR></TABLE>

USDM ITR Header will fit the stock cat.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98 Spec R &raquo;</TD></TR><TR><TD CLASS="quote">

USDM ITR Header will fit the stock cat.</TD></TR></TABLE>
ok so all USDM 4-2-1 type R header(S) regardless of the year are 2.25 and will connect to a stock cat? and all JDM 4-2-1& 4-1 headers are 2.5..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SubTitle &raquo;</TD></TR><TR><TD CLASS="quote">
ok so all USDM 4-2-1 type R header(S) regardless of the year are 2.25 and will connect to a stock cat? and all JDM 4-2-1& 4-1 headers are 2.5..</TD></TR></TABLE>

All USDM ITR Headers are the same and will fit to the stock cat.

The JDM 4-1 header has a 2.5" collector and requires a cat or test pipe that has a larger diameter than the stock USDM cat.

 

All USDM Integra exhaust manifolds have a 2" collector and they are all the same, regardless of model year. Whether or not it will bolt up to his stock cat depends upon what kind of Integra he has. If it is an LS or a '00-'01 GS-R, it will bolt on without any problem, but if it is a '94-'99 GS-R the cat or B-pipe will need to be lengthened by approximately four inches.