Mustang 4V Cobra 1999-2004 Long SystemIf your high powered Mustang Cobra needs superior headers, go with the brand that leads the way in performance and quality. With primaries in 1 3 4" and 1 7 8", we have you covered from bone stock to over 1000 RWHP. All 1 3 4" long system x pipes come with a factory 2 1 2" rear ball socket connection. Product features on this system includes: 100% Made in the USA Never Outsourced Made entirely of 304 stainless steel 3 8" thick laser cut flanges for a