COMPATIBILITY – Fits 1998-2001 Dodge Ram 1500; 1998-2001 Dodge Ram 2500; 1998-1999 Dodge Ram 3500; 2000-2001 Dodge Ram 3500; 1998-1999 Dodge Durango; 2004-2004 Ford F-150 Heritage; 1997-2001 Ford Expedition; 1998-2003 Ford F-150; 1998-1999 Ford F-250; 199 GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes Stainless steel construction for lifelong protection 100% welded design for maximum durability Straight through design ensures unrestricted exhaust flow and reduces back pressure CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower