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Shop the Roush 11-14 Mustang V6 Black Tip Axle Back Exhaust, a genuine Roush component identified by manufacturer part number 421145-BLK. Review the verified vehicle fitment, specifications, included components, and installation requirements below before ordering.
Key Features
- Dual 4" black exhaust tips with Roush Performance logo for a stealth-inspired finish
- Straight-through mufflers for improved flow and race-inspired tone
- Mandrel-bent 409 stainless steel tubing for strength and corrosion resistance
- Axle-back configuration — retains factory catalytic converters
- Bolt-on installation — no cutting or welding required
Fitment
| Years | Make | Model | Submodel |
|---|---|---|---|
| 2011-2014 | Ford | Mustang |
Specifications
| Brand | Roush |
|---|---|
| Manufacturer Part Number | 421145-BLK |
| Product Type | Exhaust |
| Condition | New |
| Manufacturer Listing | 2011-2014 Roush Mustang V6 Black-Tip Axle-Back Exhaust |
| Manufacturer Reference Price | $729.99 |
What's Included
The exact Roush component or kit identified by manufacturer part number 421145-BLK. 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
- Shop all Roush products
- Roush 11-14 Mustang GT Black Tip Axle Back Exhaust
- Roush 18-23 Mustang GT Black Tip Axle Back Exhaust
- Roush 21-24 Ford F-150 5.0L V8 Side Exit Catback Performance Exhaust w/ Black Tips
Frequently Asked Questions
Will Roush 421145-BLK 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.
Roush
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