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Old 07-06-2012, 07:22 PM   #13
yamahaSHO
Scooby Specialist
Member Sales Rating: (11)
 
Member#: 73932
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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Quote:
Originally Posted by RP31 View Post
It doesn't look like you do. There's a seat that fits there (on the real thing), and yeah, if you don't have it installed, the valve will leak. And while you will build boost, it'll be slow and low.

It looks like this: http://www.ebay.com/itm/Valve-Seat-T...-/350263172428. Fits on top of the valve between it and the V-band. Lots of people actually install these V-band EWGs and forget to put the seat in, then post asking what they could have done wrong to make their EWG "open" at idle.

Bigger picture (the things inside the V-bands are the seats):


Those are V-band flanges.

The seat looks like this:

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