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Old 01-02-2012, 06:57 PM   #15
kaler
 
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Drives: 2011 Dodge 3500 dually Mega Cab
Join Date: Jul 2009
Location: discovery bay,ca
Posts: 667
I had my headers on for 2 months before I got a tune. With long tubes ONLY it went 12.8x at the track.
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2010 SS a6 with TSP VVT-3 cam,PRC ported heads,Yank 3200,Kooks and CAI inc. = +121 RWHP 1/4 mile 12.1 E.T. On P-Zero Tires.
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