2011-14 Ford F-150 Ecoboost 3.5L for up to 156.5" Wheelbase. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. 3.5" catback exhaust with S-Tube Turbo Muffler to fit forward Factory Connection point. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.. 2011-14 Ford F-150 Ecoboost 3.5L for up to 156.5" Wheelbase. Stainless steel 3.5" catback exhaust with S-Tube Turbo Muffler to fit forward Factory Connection point.. Stainless Works 2011-14 F-150 3.5L 3-1/2in Catback S-Tube Muffler Factory Connection. Stainless Works, Ford F150 Exhaust, F150 exhaust, F150 3.5L exhaust. Stainless Works Ecoboost Catback S-Tube Muffler Factory Connect. Stainless Works Ford Ecoboost F150 Truck Exhaust. 2011 thru 2014 Ford F150 Ecoboost 3.5L. Stainless Works 2011-14 F150 Exhaust. Exhaust System Kit. Exhaust System. Exhaust Kit

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