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Old 02-08-2008, 01:05 AM   #16
Scooby Specialist
Member#: 109000
Join Date: Mar 2006
Chapter/Region: International
Location: The land of the Nurburgring
2006 Impreza 2.5i
Obsidian Black Pearl


Originally Posted by 8Complex View Post
Just curious, but what would an extension be used to fix? Even with my turbo kit on, I have never had a problem.

For the 06+ models who want to go with UEL headers, that requires them to get a new HFC and CBE. When you do this, one of the O2 sensors needs to be extended to reach the rear O2 bung in the new CAT.

Its been a discussion in this section for eons now Mr. Turbo.
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