Roush Performance Exhaust System Kit (MPN: 421145)

Enhance your Mustang's sound and performance with advanced engineering.

The Roush Performance Exhaust System Kit is designed to provide an aggressive sound profile while maximizing airflow for improved horsepower and torque. This axle-back system features a unique open chambered muffler that enhances sound quality compared to traditional mufflers, ensuring a less inhibited exhaust note. Constructed from durable 409 stainless steel, this exhaust system is built to withstand the rigors of performance driving while maintaining a sleek appearance with 304 stainless steel tips.

This dual exhaust system exits at the rear, providing a balanced aesthetic and sound distribution. The innovative design eliminates in-cockpit boom, allowing for a more comfortable driving experience at cruising speeds. Installation is straightforward, requiring no welding and including all necessary hardware, making it accessible for enthusiasts looking to enhance their vehicle's performance without extensive modifications.

With a sound level classified as aggressive, this exhaust system is engineered to deliver a powerful auditory experience that complements the performance capabilities of the Mustang. The 2-3/4 inch to 2-1/2 inch diameter pipes ensure optimal exhaust flow, contributing to the overall efficiency and effectiveness of the system. The Roush Performance Exhaust System Kit is a reliable choice for those seeking to elevate their vehicle's exhaust performance.

Features

• Adds Aggressive Sound And Increased Volume
• Increased Air Flow For Maximized Horsepower And Torque
• Unique Open Chambered Design
• 409 Stainless Steel Pipes And Muffler
• 304 Stainless Steel Exhaust Tips With Chrome Flashing
• Does Not Negatively Affect Emissions. No In-Cockpit Boom
• Easily Install

Specifications

• Manufacturer: Roush Performance/ Kovington
• Manufacturer Part Number: 421145
• Type: Axle-Back
• Exhaust Type: Dual
• Outlet Type: Dual
• Exit Position: Driver And Passenger Rear
• Material: Stainless Steel
• Includes Muffler: Yes
• Sound Level: Aggressive
• Diameter (IN): 2-3/4 Inch To 2-1/2 Inch
• Includes Exhaust Tip: Yes
• Exhaust Tip Style: 4 Inch Round Angle-Cut
• Exhaust Tip Material: Stainless Steel
• Muffler Quantity: 2
• Includes Exhaust Pipe Muffler Delete: No
• Muffler Configuration: Single Inlet/ Single Outlet
• Muffler Brand: Roush
• Includes Hardware: Yes
• Required Welding: No
• Estimated Install Time (Hours): 2

Compatibility / Fit

• 2011-2014 Ford Mustang