BBK 4011 V6 Mustang Dual Exhaust Conversion X-Pipe Kit with High-Flow Catalytic Converters

Transform your 2005-2010 Ford Mustang 4.0L V6 from a single exhaust system into a true dual exhaust setup with the BBK 4011 conversion kit. This complete system delivers enhanced performance, aggressive exhaust tone, and the capability to run any Mustang GT axle-back exhaust system.

Key Features:

• Full 2.5-inch CNC mandrel-bent aluminized steel X-pipe for maximum exhaust flow
• High-flow steel substrate catalytic converters for increased horsepower and torque
• 49-state legal (not CARB compliant for California)
• Includes driver's side tailpipe to complete the dual setup
• O2 sensor bungs positioned in OEM locations for proper fitment
• 16-gauge durable aluminized steel construction
• Made in the USA with BBK's precision manufacturing standards

Installation Notes:

• Designed for use with factory or aftermarket shorty-style headers
• Requires a 2005-2010 Mustang GT dual axle-back exhaust kit (sold separately)
• Requires both driver-side exhaust hanger brackets (not included)
• Rear bumper cover modification needed to clear driver's side exhaust tip, or use GT bumper cover
• Reuses factory hangers along with supplied hardware for straightforward installation

This BBK dual exhaust conversion provides a 35% increase in flow over stock, delivering better throttle response and an aggressive V8-style growl that will turn heads. When paired with the existing passenger-side exhaust pipe, this kit converts your V6 Mustang to a complete true dual system with the performance and sound to match.