05-10 Mustang GT 4.6L/5.4L Flowmaster 817460 American Thunder Axle-back Exhaust System

Flowmaster American Thunder Axle-Back Exhaust System - Part Number 817460

The Flowmaster 817460 American Thunder Axle-Back Exhaust System delivers the aggressive performance styling and deep exhaust tone Mustang enthusiasts expect from Flowmaster. Designed specifically for 2005-2010 Ford Mustang GT, GT500, and California Special models equipped with the 4.6L or 5.4L engine, this performance exhaust upgrade provides a moderately aggressive exterior sound with a refined interior tone. The system features mandrel-bent 2.50-inch stainless steel tubing paired with Super 44 Series chambered mufflers to improve exhaust flow, enhance throttle response, and produce the iconic Flowmaster sound. A direct-fit design uses factory hanger locations for a simple installation while polished stainless steel exhaust tips provide a clean, high-performance appearance.

Key Features

• Flowmaster American Thunder axle-back exhaust system designed for performance-oriented Mustang builds
• Super 44 Series chambered mufflers provide a deep, aggressive exhaust tone
• 2.50-inch mandrel-bent stainless steel tubing supports improved exhaust flow and durability
• Dyno-tuned design helps maximize performance characteristics
• Dual rear exit configuration with large polished 4.00-inch stainless steel exhaust tips
• Uses factory hanger locations for a straightforward installation process
• Includes hangers, clamps, and necessary installation hardware
• Designed for coupes and convertibles with compatible Mustang applications

Benefits

• Transforms the factory exhaust sound with a bold Flowmaster performance tone
• Provides an upgraded appearance with polished 304 stainless steel exhaust tips featuring the Flowmaster logo
• Offers durable construction designed for long-lasting street performance
• Maintains a balance between aggressive sound outside the vehicle and comfortable driving characteristics inside the cabin
• Helps Mustang owners achieve a more performance-focused exhaust system without replacing the entire exhaust setup
• Covered by Flowmaster's Lifetime Limited Warranty for added ownership confidence

Product Specifications

• Brand: Flowmaster
• Part Number: 817460
• Product Type: Axle-Back Exhaust System
• Exhaust Series: American Thunder
• Sound Level: Aggressive / Moderate
• Material: 409 Stainless Steel piping and muffler bodies
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Finish: Polished
• Exhaust Tip Color: Silver
• Exhaust Tip Diameter: 4.00 inches
• Exhaust Tip Quantity: 2
• Main Piping Diameter: 2.50 inches
• Tail Pipe Quantity: 2
• Exit Style: Dual Out Rear
• Muffler Type: Chambered
• Muffler Series: Super 44 Series
• Muffler Quantity: 2
• Muffler Body Size: Approximately 13.00 inches long x 9.50 inches wide x 4.00 inches high
• Muffler Finish: Black high-temperature paint finish
• Clamping Type: Flat Band
• Installation Type: Clamp-on inlet with slip-fit muffler connection
• Catalytic Converter Included: No
• Valve Included: No
• Emission Code: 5

Install Difficulty level

This Flowmaster axle-back exhaust system is designed for an easy installation using factory hanger locations and included hardware. With basic hand tools and proper vehicle support, installation can typically be completed in approximately 1 hour, making it a convenient upgrade for enthusiasts looking to improve sound and appearance without extensive exhaust modifications.

Vehicle Fitment

• 2005-2010 Ford Mustang GT - 4.6L V8 Engine
• 2005-2010 Ford Mustang GT500 - 5.4L V8 Engine
• 2005-2010 Ford Mustang California Special - 4.6L V8 Engine
• Compatible with Mustang coupe and convertible body styles

For questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.