JBA Performance Exhaust Components

Fits 1965–1973 Ford Mustang with 351W Engine

Part #: 6616S

Overview

The JBA 65-73 Ford Mustang 351W SBF 1-3/4in Primary Raw 409SS Long Tube Header is a high-performance exhaust component designed to maximize your vehicle’s power potential. Crafted specifically for classic Mustang enthusiasts and performance-minded drivers, these long tube headers are engineered to deliver superior exhaust flow, improved horsepower, and increased torque across the entire RPM range. Made from durable 409 stainless steel, they combine race-proven design with long-lasting corrosion resistance, ensuring your investment performs reliably over time. Whether you're restoring a vintage Mustang or upgrading for enhanced performance, these headers provide a significant upgrade to your vehicle’s exhaust system. Primary benefits include optimized exhaust scavenging, reduced backpressure, and a more aggressive sound profile, all while supporting high-RPM efficiency. Designed for direct bolt-on installation, these headers are intended to help you unlock your engine’s full potential without extensive modifications.

Key Features

Designed with performance in mind, these headers feature large mandrel-bent primary tubes that promote smooth airflow and reduce turbulence. The oversized exhaust ports improve exhaust evacuation, supporting higher RPM power. Extra thick 3/8-inch one-piece flanges ensure a secure, leak-free seal and durability under high heat conditions. The proprietary JBA Firecone® merged collectors facilitate seamless merging of exhaust gases, enhancing flow efficiency and engine response. Built from high-quality 409 stainless steel, these headers resist corrosion and maintain their appearance over time. The raw finish provides a classic, race-inspired look that complements performance builds.

Construction & Design

Constructed from 409 stainless steel, these long tube headers feature large mandrel-bent primary tubes for optimal airflow. The extra thick flanges and proprietary collectors are engineered for durability and performance, ensuring a secure fit and long-lasting operation. The design emphasizes smooth transitions and high-flow characteristics to support high RPM power.

Performance & Driving Experience

These headers are designed to improve exhaust flow, resulting in noticeable gains in horsepower and torque. The increased efficiency supports better acceleration and throttle response, giving your Mustang a more aggressive and responsive driving feel. The deep, resonant exhaust note enhances the driving experience, making every ride more engaging.

Installation & Fitment

Designed as a direct bolt-on upgrade, these headers fit 1965–1973 Ford Mustangs equipped with a 351W engine. Proper installation may require basic mechanical skills and standard tools. Ensure compatibility with your vehicle’s exhaust system and engine configuration before installation.

What’s Included

The package includes a pair of long tube headers constructed from stainless steel, with all necessary mounting hardware for a straightforward installation.