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Old 04-08-2014, 11:01 PM   #48
rebelyell22


 
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Drives: 2011 SIM 2SS/RS LS3
Join Date: Sep 2013
Location: Tupelo, MS
Posts: 5,902
I've heard that stock cats are better with FI than hi-flows. Get some and then put on some dynomax bullets or something. Shouldn't cost much
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2011 2SS/RS built 8/24/10
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