Jump to content

2006 Legacy 2.5i EL to UEL

Recommended Posts

Alright so I've been reading a lot on this section about UEL's on 2.5i's (Thanks GEE-OTTO and others who contributed).


I have already ordered the following parts:

  • Stock WRX manifold
  • (2) O2 bungs
  • 36" O2 Sensor Extension
  • 1/2" thick 3 bolt flange
  • 2.25" 3 bolt gasket


I will be taking this to a shop and I understand that the end of the manifold will be cut off and have a flange welded in. If I'm understanding correctly, doing this will remove my first cat? Also the 2 O2 bungs will be welded in different locations. One on the welded piece between header and midpipe, the other before after the second cat? I feel dumbfounded but I also think I kind of understand it so far. Thanks for any help.

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...

Important Information

Terms of Use