They're probably the same at first. After driving a little, especially in traffic, I'd bet the short rams produce less power than drop ins/maf tubes. Probably less than stock. Underhood temps are pretty brutal on the Z.
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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
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