MBRP Armor Pro S46073CF Cat-Back Exhaust for 2018-2021 Audi S4 and S5

THE ONLY EXHAUST YOU"LL EVER NEED - MBRP Armor Pro Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304 Stainless Steel - the most durable material grade that money can buy. The T304 Stainless Steel tubing is easy to clean and maintain. It’s the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great. Armor Pro Cat Back Exhaust System; 2.5 in.; T304 Stainless Steel; Dual Rear; Quad Carbon Fiber Tip; 4in. Quad Carbon Fiber Tips Included. Fits Sport Differential. Excludes Cabriolet.

• Durable T304 Stainless Steel Construction. Bolt-on Installation. Moderate Sound. Flow Increase of 24%. Fits with Sport Differential. Eliminates Exhaust Valves with Electronic Valve Simulators. MBRP Signature Styling and Sound.
• Improved Torque And Horsepower
• Lower Exhaust Gas Temperatures
• Increased Throttle Response
• Utilizes OEM Hangers
• Bolt On Design

Upgrade your 2018-2021 Audi S4 or S5 with the MBRP Armor Pro Series Cat-Back Exhaust System, part number S46073CF. Designed for vehicles equipped with the Sport Differential, this system uses durable T304 stainless steel construction and mandrel-bent tubing to improve exhaust flow while delivering MBRP’s signature performance sound. The system includes dual rear outlets and quad carbon fiber exhaust tips for a clean, performance-focused appearance.

Mandrel bending helps maintain consistent tubing diameter through each bend, reducing restrictions and supporting a reported 24% increase in exhaust flow. The result can include improved throttle response, increased torque and horsepower, and lower exhaust gas temperatures. The moderate sound level provides a noticeable performance tone without making the vehicle unnecessarily loud for daily driving.

The MBRP S46073CF is engineered for bolt-on installation using the vehicle’s OEM hangers. It eliminates the factory exhaust valves with electronic valve simulators and includes four-inch quad carbon fiber tips. This application fits the Audi S4 sedan and Audi S5 coupe with the Sport Differential; it does not fit Cabriolet models. MBRP backs the Armor Pro Series with a lifetime warranty, providing long-term confidence in the T304 stainless steel design.

Key Product Specifications and Technical Data

• Brand: MBRP
• Part Number: S46073CF
• Product Type: Cat-back exhaust system
• Series: Armor Pro
• Material: T304 stainless steel
• Tube Size: 2.5 inches
• Exit Configuration: Dual rear exit with quad carbon fiber tips
• Sound and Flow: Moderate sound with a reported 24% flow increase

What’s Included

• MBRP Armor Pro cat-back exhaust system
• Four-inch quad carbon fiber exhaust tips
• Electronic valve simulators
• Installation hardware as supplied by MBRP

Fitment includes 2018-2021 Audi S4 sedan and 2018-2021 Audi S5 coupe models equipped with the Sport Differential. Excludes Audi S5 Cabriolet models. Professional installation is recommended. This product is not CARB approved and may not be legal for use on public roads in areas where emissions regulations apply.

Features:

• T304 Stainless Steel Construction: Provides excellent durability, corrosion resistance, and easy maintenance in demanding driving conditions.
• Mandrel-Bent Tubing: Maintains consistent internal diameter through bends to support efficient exhaust flow and performance.
• Improved Performance: Supports increased throttle response, torque, and horsepower while helping lower exhaust gas temperatures.
• Bolt-On Installation: Uses OEM hangers for a straightforward installation and includes electronic valve simulators to eliminate the factory exhaust valves.

Fitments:
2018 Audi S4 Premium Plus
2018 Audi S4 Prestige
2018 Audi S5 Premium Plus
2018 Audi S5 Prestige
2019 Audi S4 Premium
2019 Audi S4 Premium Plus
2019 Audi S4 Prestige
2019 Audi S5 Premium
2019 Audi S5 Premium Plus
2019 Audi S5 Prestige
2020 Audi S4 Premium
2020 Audi S4 Premium Plus
2020 Audi S4 Prestige
2020 Audi S5 Premium
2020 Audi S5 Premium Plus
2020 Audi S5 Prestige
2021 Audi S4 Premium
2021 Audi S4 Premium Plus
2021 Audi S4 Prestige
2021 Audi S5 Premium
2021 Audi S5 Premium Plus
2021 Audi S5 Prestige
2022 Audi S4 Premium
2022 Audi S4 Premium Plus
2022 Audi S4 Prestige
2022 Audi S5 Premium
2022 Audi S5 Premium Plus
2022 Audi S5 Prestige
2023 Audi S4 Premium
2023 Audi S4 Premium Plus
2023 Audi S4 Prestige
2023 Audi S5 Premium
2023 Audi S5 Premium Plus
2023 Audi S5 Prestige
2024 Audi S4 Premium
2024 Audi S4 Premium Plus
2024 Audi S4 Prestige
2024 Audi S5 Premium
2024 Audi S5 Premium Plus
2024 Audi S5 Prestige
2025 Audi S4 Premium
2025 Audi S4 Premium Plus
2025 Audi S4 Prestige

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1