1-7/8" STAINLESS HEADERS. 2015-2020 MUSTANG GT 5.0L 11512401

1-7/8" x 3" Stainless Steel Long Tube Headers. 2015-2020 Ford Mustang GT 5.0L 4V. 304 Stainless Steel Construction 3/8" Thick Laser Cut Flanges Round Port Stock Bolt Pattern 1-7/8" Mandrel bent Primaries Includes 755392 Gaskets, 1) CAS-105979 Oxygen Sensor Extension Harness for 2015-2017 Cars, 2)CAS-104677-5PIN Oxygen Sensor Extension Harnesses for 2018+ Cars and BK101 & BK107 Bolt Kits required for Installation Requires KOOKS Front Connection pipes and OEM Adapters or X-Pipe or H-Pipe Exhaust> Also available as part of Header and Connection Kit Part# 1151H411, 1151H421, 1151H431 Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!" Manufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.