So I bought some comptech headers about a year ago for bout $250. Got them from a friend who had wrecked his car. Anyway a friend of mine has a type r and offered to trade me his type r headers plus $100 cash for my comptech so im deciding on it, I heard the type r headers r better if not the same as my comptech. What you guys think. P.S. I have an LS I just wanted some feedback from the type r guys.

 

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

Dude, you only need one header for an ITR or most 4cyl cars...

 

wow sorry HEADER

 

usdm comptech header or their race header?

 

For $250... I can only imagine the USDM Comptech Header. If not, great deal, haha.

 

umm the guy told me it was a $700 header soooo i dont think its a race header though i have never checked, but they r legal so prob not race ones

 

Are you running a catalytic converter/test pipe in the stock location? If not, it's the race header.

Race...


USDM Header...

 

Are the merge collectors for the primaries in the front of the engine or under?

 

ok its usdm then. and im runnin a test pipe.

 

Even in that case, I'd just hang onto the Comptech unit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by soulconfiguration &raquo;</TD></TR><TR><TD CLASS="quote">ok its usdm then. and im runnin a test pipe.</TD></TR></TABLE>

Well I believe the primaries are 1-1/2 x 1-5/8 and 1-3/4 on the secondaries, but please verify (measure the primary OD just before the step). A usdm DC 4-2-1 is 1-5/8 primaries and 1-3/4" secondaries. The OEM JDM ITR 4-1 has 1.69" OD primaries. I'd opt for the JDM ITR.

 

ya i might get the type r's i need a lil extra money, also im gonna try get 200 mayb 150 out of him.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by soulconfiguration &raquo;</TD></TR><TR><TD CLASS="quote">ya i might get the type r's i need a lil extra money, also im gonna try get 200 mayb 150 out of him.</TD></TR></TABLE>

well either way it would be an upgrade from the header you have on your car now.

 

ya i think so...the money would help.

 

is it the usdm cast iron itr header or jdm 4-1?

 

I think the usdm but im only 50 50 sure bout that, im gonna go look at it later and find out. the usdm isnt 4-1?

 

uh ohhhh now u got me confused lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by soulconfiguration &raquo;</TD></TR><TR><TD CLASS="quote">I think the usdm but im only 50 50 sure bout that, im gonna go look at it later and find out. the usdm isnt 4-1?</TD></TR></TABLE>

the usdm is 4-2-1. i have the comptech header you have and i would trade it for the jdm 4-1 anyday

 

uhhhhhh ohhhhh spaggettio (spellcheck lol)

I kinda dunno now i think he has usdm : (

 

the usdm is a cast iron manifold similar to all the other integra manifolds

 

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

Well I believe the primaries are 1-1/2 x 1-5/8 and 1-3/4 on the secondaries, but please verify (measure the primary OD just before the step). A usdm DC 4-2-1 is 1-5/8 primaries and 1-3/4" secondaries. The OEM JDM ITR 4-1 has 1.69" OD primaries. I'd opt for the JDM ITR.</TD></TR></TABLE>

Would the larger primaries benefit the B18B though? I'm just curious since the LS has such a restrictive IM and smaller ports/valves than the B18C.

 

eh im keeping them.

 

1 more thing. do all B series engines have the same fitment ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by soulconfiguration &raquo;</TD></TR><TR><TD CLASS="quote">1 more thing. do all B series engines have the same fitment ?</TD></TR></TABLE>

No. The B16A has a shorter deck height, the '94-'99 GS-R has a shorter overall length and no 02 bung, and various models have different flange angles where the collector bolts to the cat.