The MagnaFlow Competition Series Cat-Back Performance Exhaust System 15673 adds an aggressive, attention-grabbing edge to MagnaFlow’s signature deep and resonant exhaust tone. Designed for the 4.6L 1999–2004 Ford Mustang, this system delivers dyno-proven performance with a competition-focused sound profile.
Fast-flowing mandrel bent 2.5-inch main piping and two straight-through mufflers optimize exhaust flow and performance. The system terminates in a dual split rear exit with 3.5-inch polished clamp-on single wall angle-cut cut edge tips, giving the exhaust a sporty and purposeful appearance. Exhaust system 15673 is tuned to produce aggressive exterior sound levels with moderate interior sound levels, perfectly suited to its competition-oriented design.
This cat-back exhaust system replaces the factory exhaust components from near the catalytic converter on back. Advanced 3D scanning ensures a precise direct-fit design for easy installation. Constructed from 100% durable, corrosion-resistant stainless steel and manufactured using CNC precision robotic techniques, system 15673 is backed by MagnaFlow’s limited lifetime warranty. Please check local noise regulations prior to installation.
Specifications
System Type: Performance exhaust
Series: Competition Series
Layout: Cat-back
Pipe Diameter: 2.5"
Pipe Type: Mandrel bent
Mufflers: 2 straight-through
Exit: Dual split rear exit
Tips: 3.5" polished clamp-on single wall angle-cut cut edge
Exterior Sound Level: Aggressive
Interior Sound Level: Moderate
Material: 100% stainless steel
Manufacturing: CNC precision robotic manufacturing
Fitment: Direct-fit
Warranty: Limited lifetime warranty
