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Old 01-19-2010, 11:29 AM   #5
Scooby Guru
Member Sales Rating: (62)
Member#: 95337
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: Putnam/Westchester NY
2012 Jeep Overland


An uppipe isn't entirely necessary on the '06-'07's because they're catless. Previous models were catted. They only have 2 cats in the downpipe as opposed to the additional 1 cat in the uppipe.

Engine management will not fix boost spike. It's a mechanical issue.
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