BBK 1666 High Flow X-Pipe with Catalytic Converters for 1996-1998 Mustang GT 4.6L

The BBK 1666 is a high-performance 2.5-inch X-pipe exhaust system designed specifically for 1996-1998 Ford Mustang GT models equipped with the 4.6L engine. This complete X-pipe assembly features integrated high-flow catalytic converters that maintain emissions compliance while significantly improving exhaust flow and engine performance.

Key Features:

• Computer-mandated bent aluminized steel tubing for optimal flow and durability
• Precision die-stamped flanges ensure leak-free installation
• High-quality TIG welds for long-lasting performance
• Delivers 12-20 horsepower gain at the rear wheels (chassis dyno tested)
• Includes high-flow catalytic converters for 50-state legal emissions compliance
• Direct bolt-on replacement for factory H-pipe system
• 2.5-inch diameter tubing throughout for maximum exhaust flow

The X-pipe design balances exhaust pulses between cylinder banks, resulting in improved scavenging, increased horsepower and torque, and an aggressive exhaust note. BBK's mandrel-bent construction maintains consistent pipe diameter through all bends, eliminating restrictions found in crush-bent factory exhaust systems. This system installs between the factory manifolds or aftermarket headers and the rear mufflers.