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Old 07-30-2011, 12:51 AM   #26
drewvdw
Scooby Specialist
 
Member#: 255776
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: Laramie, WY
Vehicle:
2010 LR WRX
MPS powered.

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Oh, haha, you really don't need aftermarket cat back, the downpipe is what matters. There's a thread in the noob section discussing this. You'd miss out on a couple horses, but you'd gain most of that back if you'd add it post tune.
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