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The Stainless Works 3" downpipe for 2015–2020 Ford F-150 3.5L EcoBoost applications uses CNC mandrel-bent 304 stainless tubing and includes catted lead pipes plus a Y-pipe to fit to the flanged factory connection point. These TIG-welded kits are made in the USA and provide a direct-fit replacement intended to integrate with the factory exhaust connection on supported 3.5L EcoBoost trucks.
Stainless Works 15-18 F-150 3.5L Downpipe 3in High-Flow Cats Y-Pipe Factory Connection
