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i've topped mine out several times. it is between 155 & 157 depending on wind direction. at that speed the evo is like an apt building moving down the road. it is not very aerodynamic like an S2K or Ferrari. there are evo's that will travel at higher speeds but they required extensive power & aero mods to accomplish that. for aero purposes you have to find out the CD (coefficient of drag) of a vehicle. the current gen Audi S4 has a cd of 0.29 which is VERY good. it is a number used to calculate how easily a car cuts thru wind in a wind tunnel test.
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ALL KNOWING
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mods:
HKS SPF filter
Turbo XS BOV
Perrin radiator hoses/IC elbows
Vivid Racing plug cover & batt tie down
RMR lower subframe brace
Blitz FATT DC turbo timer
CF shift knob
3" Espelir catback exhaust
Cusco OS rear strut tower brace
Cusco rear adj sway bar 23mm
Perrin sway bar end links
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