JBA Headers 6613SJS Long Tube Stainless Steel Header Silver Ceramic 1-5/8in Primary

The JBA Headers 6613SJS is a full-length long tube header built from 409 Series Stainless Steel with a silver ceramic high-temperature coating. Designed for classic Ford Mustangs equipped with small block V8 engines, these headers are engineered to maximize exhaust flow and unlock serious performance gains over factory cast iron manifolds.

Key Features:

• 1-5/8" large-diameter mandrel-bent primary tubes for maximum flow and high-RPM efficiency
• Patented JBA Firecone® merged collector for improved exhaust scavenging and increased horsepower and torque
• Extra-thick 3/8" one-piece CNC laser-cut flanges that resist warping and prevent exhaust leaks
• Oversized exhaust ports to accommodate ported or aftermarket cylinder heads
• Silver ceramic high-temp coating reduces underhood heat and provides long-lasting corrosion resistance
• O2 sensor provisions included for compatibility with oxygen sensor-equipped systems
• Designed for maximum ground clearance so lowered vehicles do not drag the collectors
• Includes all necessary hardware and gaskets for installation

These long tube headers are specifically designed to provide clearance for the Borgeson Integral Power Steering Box conversion used on classic Mustangs. They are compatible with Ford AOD (Automatic Overdrive) transmissions and 5-speed transmissions with aftermarket crossmembers. Note: Will not fit P-Head cylinder heads. Does not fit 71–73 Mustangs with factory 4-speed clutch linkage. Will not clear 65–70 Mustangs with 351W engines.

JBA long tube headers are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range, making the 6613SJS an ideal performance upgrade for any classic Mustang build.