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Old 06-03-2011, 07:06 PM   #2
cowboy74
 
Drives: none at this time
Join Date: Aug 2009
Location: goose creek sc
Posts: 88
40 series is the loudest my brother had some on a 96 f150 lol would shake the house when he fired it up lol . 44 and 50 are the quieter of the series with 60 being the really quiet one . i have heard a 2ss with 40 series at a car show recently all ican say is hold ya ears if ya stand behind the car lol
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