Performance Stainless Steel Long Tube Stainless Steel Exhaust Headers Kit For Dodge/Chrysler RT R/T 5.7L, 6.1L & 6.4L V8 Hemi SRT-8 SRT8 Fit: 2005-2012 Chrysler 300C & SRT8 5.7L, 6.1L & 6.4L V8 Hemi Fit: 2009-2012 Dodge Challenger & SRT8 5.7L, 6.1L & 6.4L V8 Hemi Fit: 2006-2012 Dodge Charger R/T & SRT8 5.7L, 6.1L & 6.4L V8 Hemi Fit: 2005-2009 Dodge Magnum R/T 5.7L & SRT8 6.1L Hemi V8 Tube Inlet Diameter: 1-3/4". Collector Size: 3.50". Flange Connection to Mid Pipe (Not Included)