A fuel return for anything but a turbo setup is overkill. You don't even need it for a more conservative turbo setup.
If injectors, pump and a tune are worth it for the ~10whp you'll get NA on e85, go for it. But the injectors you need for a NA E85 setup are much smaller than for a turbo build, so you'll end up replacing them again when you boost the car.
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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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