2015-2025 Roush Mustang V6 & Ecoboost Black-Tip Axle-Back Exhaust 421837-BLK

2015–2025 Roush Performance Mustang V6 & EcoBoost Black-Tip Axle-Back Exhaust System

Sharper Sound. Stealth Look. Proven Roush Performance.

Awaken your 2015–2025 Mustang V6 or EcoBoost with the Roush Performance Black-Tip Axle-Back Exhaust System — a bold upgrade that delivers aggressive tone, enhanced flow, and motorsport-inspired styling. Whether you're driving a 3.7L V6 or 2.3L EcoBoost, this system amplifies your Mustang’s performance character with a rich, throaty sound and head-turning rear-end presence.

Key Features:

• Fits 2015–2025 Mustang V6 and 2015–2025 Mustang EcoBoost Fastback models

• Dual 4" black exhaust tips with laser-etched Roush Performance logos for a sleek, aggressive finish

• Straight-through muffler design for a deeper, more powerful exhaust note

• Mandrel-bent 304 stainless steel for durability and optimized exhaust flow

• Axle-back design — retains factory catalytic converters and emissions components

• Bolt-on installation — no cutting or welding required

Sound That Matches Your Drive.

Designed with performance in mind, the Roush Performance Axle-Back Exhaust gives your V6 or EcoBoost Mustang a more aggressive exhaust tone that enhances your driving experience without unwanted drone. The straight-through mufflers and smooth mandrel bends provide improved flow and a sporty, race-ready growl — all while maintaining comfort inside the cabin.

Style That Sets You Apart.

With dual 4-inch black tips and precision-crafted components, this system doesn’t just sound the part — it looks it. The stealthy finish and bold Roush Performance branding give your rear fascia a clean, performance-focused appearance that stands out from stock.

Built with Purpose. Backed by Performance.

Like every Roush Performance product, this axle-back system is engineered with the same attention to detail, durability, and precision that defines our performance heritage. It’s built to perform — and built to last.

Upgrade your Mustang V6 or EcoBoost with the Roush Performance Black-Tip Axle-Back Exhaust — the perfect combination of sound, style, and street-ready performance.