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Old 07-06-2010, 10:36 AM   #5
Scooby Guru
Member#: 43393
Join Date: Sep 2003
Chapter/Region: MAIC
Location: Middle River
2014 Audi a6
Daytona Gray


Originally Posted by OrbitalEllipses View Post
An exhaust change in any 2004+ WRX/STI. However, catbacks are exempt as they don't change much. A downpipe however may cause you to overboost.
Amazing as it sounds, in the 2010 lgt's pverboost is found by replacing the axle back exhaust, by members.
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