I currently have a USDM ITR intake manifold, I wanna know if anyone know or have ran both manifolds and can tell me if the JDM would provide a lil bit more power. Thanks

 

Same units.

The JDM may or may not have one extra vacumn line for the EVAP system.

 

Even if the JDM unit has a bigger intake plenum and shorter runners?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blkcivicpn0i &raquo;</TD></TR><TR><TD CLASS="quote">Even if the JDM unit has a bigger intake plenum and shorter runners?</TD></TR></TABLE>

The intake manifold dimensions are the same. I dont know where you heard otherwise, but that information is false.

 

There's a thread here that gave a picture of both. Here https://honda-tech.com/zerothread?id=906684&page=1

 

Depth perception my friend...

They are both identical in dimension, but as described in that thread, there is no EVAP nipple on the JDM manifold, like I mentioned in my first post