JBA 1964S-1 1-3/4" Shorty Stainless Steel Exhaust Header for Challenger 5.7L / 05-10 Charger/Magnum/300C Mandrel bent stainless steel tube Patented JBA Firecone collector Factory style emission connections Extra thick collector domes 3/8 inch thick CNC laser-cut flanges with oversized exhaust ports