JBA Headers 1685SJS 1-3/4" Silver Ceramic Shorty Exhaust Header for Mustang 5.0L

The JBA Headers 1685SJS is a high-performance shorty exhaust header engineered for the 2011–2014 Ford Mustang GT with the 5.0L Coyote V8 engine. Designed as a direct bolt-on replacement for the restrictive factory cast iron exhaust manifolds, these Cat4Ward headers are built to maximize exhaust flow, improve throttle response, and deliver real horsepower and torque gains across the RPM range.

Constructed from mandrel-bent stainless steel primary tubes measuring 1-3/4 inches in diameter and featuring a 2-1/2 inch collector, these headers are finished in JBA's signature silver metallic ceramic coating. The high-temp ceramic finish not only delivers a clean, polished underhood appearance but also acts as a thermal barrier to reduce radiant heat buildup.

Key Features:

• 1-3/4" mandrel-bent stainless steel primary tubes – Smooth, unrestricted exhaust flow with improved durability
• Patented JBA Firecone® collector – Race-proven technology engineered for maximum horsepower and torque gains
• 3/8" thick CNC-machined header flanges – Resists warping for a leak-free seal; features oversized exhaust ports to accommodate ported cylinder heads
• Extra-thick collector domes – Eliminates distortion and prevents exhaust leaks common with lesser-quality headers
• Silver metallic ceramic coating – High-temp finish lowers underhood temperatures and resists corrosion
• Factory-style emission connections – Retains OEM O2 sensor and emissions hardware for straightforward installation
• 50-state smog legal (CARB Approved: D-57-33) – Legal for use in California and all states following California emissions standards
• Includes hardware and installation instructions – Everything needed for a professional, no-leak installation

JBA backs these headers with a one-year manufacturer's warranty covering defects in materials and workmanship for the original purchaser. Whether you're building a street machine or a weekend track car, the JBA 1685SJS delivers a proven combination of performance, quality, and emissions compliance.