Stillen headers don't make power. The 370 has a good set of headers already. Test pipes are loud. If noise is a concern, get high flow cats instead.
Honestly, any shop that recommends Stillen headers is a shop I would avoid. Plus, the OEM headers have plenty of heat shielding.
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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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