shure
They all do the same thing ,as far as your going " X " MPH for them to work ,and thats only on a drag strip anyway so ? you have one already ,why spend more money on the same principal. 
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1991 5.0 NotchBack,Black
as of 05/04/09 34,300mi.
2001 LIGHTNING Black 29,872 mi.
05/04/09
(Hangar Queen)
SMOKEM UP
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