Just to keep any heat out of the lower manifold. I have no doubt it would help things on the theory level, but it probably falls into the same category as deleting the throttle body coolant lines- helpful in theory, unnoticable in practice.
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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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