The reason to move them back is to get them out of the way of the much higher temps that the cats would see in a FI application. Moving them downstream will still be hot enough for them to light off. These work very well. This isn't something to have an issue over.
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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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