To really get your money's worth out of a tune, get all of your mods done first. Otherwise you'll have to go back and get it retuned. I'd also do whatever you're going to do about that intake beforehand. You're probably ok running as is until you get tuned, but running leaner combined with high IATs is asking for detonation.
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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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