Sinister Diesel Upgraded EGR Coolers are direct OE replacement parts and do not alter or render useless any emissions equipment including the factory EGR system.* Does not Require Complete Removal of Intake Manifold saving hours of install time Direct Replacement of existing EGR Cooler Works great on vehicles in heavily smog tested counties Pressure Tested TIG Welds Guaranteed not to Leak Includes detailed Installation Instructions Factory honeycomb is replaced with bigger stainless steel tubing which allows for better exhaust gas flow into manifold Will not throw a Check Engine Light on any year 6.0 Powerstroke Fits: 2003 F-250, F-350, F-450, F-550, Excursion, and Econline Vans This includes XL, XLT, Limited, King Ranch and Eddie Bauer $80 Core Charge will be ran on your credit card and credited back once we receive your old egr cooler within 30 Days