1 7/8" Long Tube Headers

The JBA Performance Exhaust 6689S long tube headers are engineered for maximum performance gains and high RPM efficiency, specifically for 2015-2019 Mustang 5.0L vehicles. Constructed from durable 409 stainless steel, these headers boast 1 7/8" primary tubes and oversized exhaust ports that can accommodate ported cylinder heads. The 3/8" thick CNC laser-cut flanges are designed to prevent leaks caused by warping, while the patented JBA Firecone® merged collector ensures smooth exhaust flow and improved scavenging for increased horsepower and torque. The system includes O2 sensor provisions for EFI systems and is designed for maximum ground clearance, even on lowered vehicles. Please note that this product is not legal for street or off-highway use in California or in states that have adopted California emissions regulations. It is intended for closed-course competition use or pre-emissions controlled vehicles only.