Flowmaster American Thunder Axle-back Exhaust System 2005-2009 Ford Mustang with V6 engine. Fits coupe and convertibles. - Moderate sound - 17421

Enhance the sound, performance, and appearance of your Mustang with the Flowmaster American Thunder Axle-Back Exhaust System for the 2005–2009 Ford Mustang V6. This system is engineered to deliver Flowmaster’s signature exhaust tone with a balanced, moderate sound level that is aggressive outside the vehicle while remaining comfortable inside the cabin.

Constructed from durable 16-gauge mandrel-bent aluminized steel, this axle-back system features a specially designed Flowmaster 60 Series Delta Flow performance muffler that improves throttle response, horsepower, and fuel efficiency. The exhaust is finished with a large polished stainless steel exhaust tip that fills the factory rear valance cutout for a bold, muscular appearance.

Designed as a direct bolt-on upgrade, this system uses factory hanger locations and includes all required hangers and hardware for an easy installation. Like all Flowmaster exhaust systems, it is dyno tuned to maximize performance while maintaining reliability and daily drivability.

Key Features

• Dyno tuned for maximum performance

• Moderate interior tone with a moderately aggressive exterior exhaust note

• Flowmaster 60 Series Delta Flow chambered performance muffler

• Mandrel-bent 16-gauge aluminized steel tubing

• 4.00-inch polished stainless steel exhaust tip

• Uses factory hanger locations

• Includes hangers and hardware for easy installation

• Improves throttle response, power, and mileage

• Direct bolt-on axle-back exhaust system

Vehicle Fitment

• 2005 Ford Mustang V6

• 2006 Ford Mustang V6

• 2007 Ford Mustang V6

• 2008 Ford Mustang V6

• 2009 Ford Mustang V6

• Fits both coupe and convertible models

Specifications

• Brand: Flowmaster

• Product Type: Axle-Back Exhaust System

• Exhaust Series: American Thunder

• Sound Level: Moderate

• Muffler Series: 60 Series Delta Flow

• Muffler Type: Chambered

• Muffler Quantity: 1

• Muffler Body Material: Aluminized Steel

• Muffler Finish: Black High-Temperature Paint

• Muffler Body Shape: Oval

• Muffler Body Length: 13.00 IN

• Muffler Body Width: 10.00 IN

• Muffler Body Height: 5.00 IN

• Inlet Diameter: 2.50 IN

• Main Piping Diameter: 2.50 IN

• Pipe Material: Aluminized Steel

• Pipe Color: Black

• Exhaust Tip Material: 304 Stainless Steel

• Exhaust Tip Finish: Polished

• Exhaust Tip Diameter: 3.50 IN

• Exhaust Tip Length: 5.25 IN

• Exhaust Tip Shape: Round

• Exhaust Tip Cut: Angled

• Exhaust Tip Edge: Rolled Edge Angle Cut

• Exit Style: Single Out Rear

• Clamps Included: Yes

• Clamping Type: Flat Band

• Hangers Included: Yes

• Catalytic Converter Included: No

• Drive Type: 2WD

• Emissions Code: 5

• CARB Compliant: Yes

• California Proposition 65: Yes

• California Proposition 65 Chemical Name: Chromium (hexavalent compounds)

• Valve Included: No

• Type: Axle-Back