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Old 05-22-2013, 12:28 PM   #11
JDP Sales
 
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Drives: Chevys at the limit
Join Date: Nov 2010
Location: SLC, UT
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Quote:
Originally Posted by axis View Post
To answer your last question. Most 3in catbacks neck down to 2.5 to accept the OEM 2.5in midpipes (cat section) unless you specify that you want it 3in through and through.
Quote:
Originally Posted by drayco513 View Post
look for a step down in the mid section of the pipe. going from 2.5 to 3. if it same size all the way then its more then likely a 2.5


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