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Old 09-25-2012, 10:12 PM   #15
deljaso
Scooby Newbie
 
Member#: 321126
Join Date: May 2012
Location: Lexington KY
Vehicle:
2011 Sti
DGM

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Quote:
Originally Posted by Tryptofan View Post
What are those extra little cylinders next to the mufflers?? They look to be something adjustable - some sort of adjustable silencer?
I have seen them called "j pipes" on other exhaust systems and their purpose is to eliminate resonance at certain frequencies.
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