Roush 421145 axle back product view 1
Roush 421145 axle back product view 2
Roush 421145 axle back product view 3
Click to zoom in

Roush 2011-2014 Ford Mustang V6 Enhanced Sound Dual Axle-Back w/ Round Tips

Roush
RSH421145
844764003705
Axle Back
14 Units In Stock
$ 729.99
$ 729.99

Shop the Roush 2011-2014 Ford Mustang V6 Enhanced Sound Dual Axle-Back w/ Round Tips, a genuine Roush component identified by manufacturer part number 421145. Review the verified vehicle fitment, specifications, included components, and installation requirements below before ordering.

Key Features

  • The round tips of this Mustang dual exhaust kit are made from high-quality 304 stainless steel.
  • The mufflers and inlet pipe are made from 409 stainless steel for improved durability.
  • In contrast to the conventional fiberglass-packed muffler design, this open muffler has a less inhibited sound, increased longevity (because there is no fiberglass packing that tends to break-down over time), and increased air flow for maximized power.
  • This kit fits V6 Mustangs and features a all-new ROUSH open-chambered muffler with round tips.
  • Another great feature of this system is the elimination of the in-cockpit boom, which is common in performance exhaust systems at cruising speeds.
  • The shiny finish of these tips are made with a special chrome flashing process that is dramatically more resistant to cracking and flaking than conventional chrome surfacing.

Fitment

Years Make Model Submodel
2011-2014 Ford Mustang

Specifications

Brand Roush
Manufacturer Part Number 421145
Product Type Axle Back
Condition New
Manufacturer Listing 2011-2014 Roush Mustang V6 Exhaust Kit - Round Tips
Manufacturer Reference Price $729.99

What's Included

The exact Roush component or kit identified by manufacturer part number 421145. Included hardware and supporting components are limited to what Roush supplies for this part number.

Brand Information

Roush Performance develops engineered performance, handling, exhaust, induction, forced-induction, and appearance products for Ford vehicles. Application and configuration must be verified by the complete Roush part number.

Related Roush Products

Frequently Asked Questions

Will Roush 421145 fit my vehicle?
Match the complete year, make, model, and submodel shown in the fitment table, then verify the engine, trim, factory equipment, emissions requirements, and all application notes.

Does this include everything required for installation?
Included components vary by exact part number. Review the Roush instructions and product details, then confirm whether calibration, specialty tools, reused factory hardware, or supporting parts are required.

Is professional installation recommended?
Professional installation is recommended for exhaust, suspension, supercharger, intake, and body components when the work requires lifting, alignment, calibration, wiring, tuning, or safety-system checks.

Installation Instructions

Follow the current Roush instructions for this exact part number. Confirm vehicle configuration, safely support the vehicle where required, protect wiring and nearby components, use specified fastener torque, complete any required alignment or calibration, and inspect operation before normal driving.

Axle Back

Axle Back

Axle back exhaust systems for cars, trucks, SUVs, and performance builds are stocked at Black Ops Auto Works. Shop single and dual exit axle back systems, valved axle back exhausts, stainless steel and titanium tip options, black chrome and carbon fiber tips, and vehicle specific axle back kits for Corvette, Mustang, WRX, Miata, Corolla, Bronco, and Explorer platforms from MBRP, Borla, MagnaFlow, AWE Tuning, Corsa, and aFe. Every axle back system is filterable by year, make, model, trim, engine, and drivetrain so the correct diameter, tip style, and mounting hardware ships the first time. Black Ops Auto Works carries 611 axle back SKUs across single exit, dual exit, and valved categories. What This Collection Covers Axle back exhaust replaces everything from the rear axle back, typically the muffler, resonator if equipped, and exhaust tips, without touching the catalytic converter, mid pipe, or headers. It is the most common entry point into aftermarket exhaust because it focuse...

View Axle Back Products
Exhaust Systems

Exhaust Systems

Shop performance exhaust systems, cat-backs, axle-backs, headers, mufflers, and exhaust tips at Black Ops Auto Works. Compare options from Borla, CORSA, Solo Performance, AWE, MagnaFlow, MBRP, Kooks, Akrapovic, Invidia, and other brands. Find complete systems and individual components for muscle cars, performance SUVs, trucks, imports, and European vehicles. Cat-Back and Axle-Back Exhaust Systems Choose the exhaust section that matches your project. Cat-back systems generally replace the exhaust downstream of the catalytic converter, while axle-back systems replace the rear section. Exact connection points and package contents vary by vehicle. Compare muffler design, pipe diameter, exit location, tip configuration, and compatibility with existing exhaust components. Exhaust for HEMI, SRT, Trackhawk, and Hellcat Vehicles This collection includes exhaust options for selected Jeep Grand Cherokee SRT and Trackhawk, Dodge Durango SRT and Hellcat, Dodge Charger, Chrysler 300, and Ram appl...

View Exhaust Systems Products
Ford Mustang Parts & Accessories

Ford Mustang Parts & Accessories

Find Ford Mustang exhaust and body accessories by generation, engine, body and installed exhaust equipment. Keep S550/S650, GT and Dark Horse applications explicit. Exhaust Configuration and Active Hardware Match Track, Touring or SwitchPath configuration to exact engine, body and manufacturer application. Compare tip layout and complete-system contents. A valve-motor bracket for an active-exhaust application is a supporting component, not a complete cat-back. Identify actual installed valve equipment and any previous exhaust changes. Generation-Specific Protection Match hood protectors to exact production range and panel or fascia application. Different Mustang body revisions should remain separate. Review installation instructions and the actual components supplied. Retain exact exhaust part references and conversion details for future service or configuration changes. Choose Your Part Record generation, engine and exact body. Identify active or other installed exhaust equipment....

View Ford Mustang Parts & Accessories Products
Roush

Roush

Shop Roush performance parts for Ford Mustang, F-150, Bronco, Ranger, Raptor, and Super Duty applications. This collection includes Roush supercharger kits, cold air intakes, cat-back and axle-back exhaust systems, suspension upgrades, wheels, exterior styling, engine components, floor protection, and vehicle accessories. Every listing is organized by exact manufacturer part number and verified vehicle fitment so you can compare the correct components for your Ford. Roush Power and Airflow Upgrades Roush supercharger systems and air induction products are engineered for specific engine and model-year combinations. Available products include Mustang and F-150 supercharger kits, cold air intake systems for Mustang, F-150, Bronco, and Ranger, plus supporting belts and engine components. Horsepower ratings, calibration requirements, emissions eligibility, fuel requirements, and included hardware vary by part number. Review the complete application notes before ordering a power upgrade. ...

View Roush Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×