The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15817 delivers enhanced engine sound and dyno-proven performance to your 2.8L, 3.3L, 4.3L, or 4.7L 1964–1966 Ford Mustang, along with MagnaFlow’s deep, resonant signature exhaust note. Engineered to produce Aggressive exterior and Moderate interior sound levels, this system gives your classic muscle car the bold presence it deserves while maintaining reasonable cabin comfort.
Constructed from durable, corrosion-resistant stainless steel, this exhaust system is built to withstand years of spirited driving. It features a crossmember-back layout designed to replace your Ford Mustang’s factory exhaust components from the crossmember rearward.
With fast-flowing 3-inch mandrel-bent main piping and two Straight-Through mufflers, this system maximizes exhaust flow for improved performance and efficiency. It terminates in a Dual Split Rear exit and can be paired with tips of your choosing to match your vehicle’s style.
Extensive 3D scanning during development ensures a precise direct-fit design for easy do-it-yourself installation. Manufactured using CNC precision robotic techniques, the system is backed by MagnaFlow’s limited lifetime construction warranty.
Specifications
Series: MagnaFlow Street Series
System Type: Crossmember-Back
Main Piping Diameter: 3"
Tubing: Mandrel-Bent
Mufflers: 2 Straight-Through
Exit Configuration: Dual Split Rear
Tips: Not Included (Tip-Ready Design)
Exterior Sound Level: Aggressive
Interior Sound Level: Moderate
Material: Stainless Steel
Manufacturing: CNC Precision Robotic
Fitment Type: Direct-Fit Design
Warranty: Limited Lifetime Construction Warranty
