Thread: Tuners Help
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Old 06-18-2013, 05:01 PM   #5
Ditty
2nd Gear Member
 
Join Date: Oct 2011
Vehicle: 2012, Ford, Mustang GT
Location: MD
Posts: 443
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THIS is the source of your problem. It's required to run a tune if you delete the cats.
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DITTY

"Scarlette":2012 GT 5.0, 6spd man, Brembos, 3.73, RACERED/Black, Deleted stock mufflers.
12.959 @ 110.9 (Oct 7, 2011)

"Brisco": 2000 F-350 XLT 7.3L Powerstoke, 6spd man, Crewcab/LB, 4wd, so many performance mods I've forgotten 'em all. Down for the count. NO BRAKES and NO CLUTCH!
16.149 @ 84mph (in 2007/7800lbs)
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