MBRP S46073CF 2.5" Resonator-Back Quad Exhaust for 2018-2025 Audi S4/S5 3.0L

Vehicle Fitment

• 2018-2025 Audi S4 (3.0L V6, AWD - excludes Cabriolet, fits Sport Differential)
• 2018-2025 Audi S5 (3.0L V6, AWD - excludes Cabriolet/Sportback, fits Sport Differential)

Features

• Resonator-back exhaust system tuned for enhanced sound and flow
• 2.5" mandrel-bent T304 stainless steel tubing for durability and corrosion resistance
• Quad rear exit design for aggressive visual presence
• Carbon fiber dual-wall 4" exhaust tips for premium styling
• Street sound profile delivers moderate aggressive tone without excessive drone
• Bolt-on installation - no cutting required
• Flow increase of approximately 24% over stock exhaust
• Eliminates factory exhaust valves using electronic valve simulators
• Lifetime manufacturer limited warranty on materials and workmanship

Specifications

• Part Number: S46073CF
• System Type: Resonator-back exhaust
• Main Tubing Diameter: 2.5"
• Material: T304 stainless steel
• Exit Style: Quad rear exit
• Tip Style: Carbon fiber dual-wall, 4" diameter
• Sound Profile: Street (moderate aggressive sound)
• Drivetrain: AWD (factory Sport Differential)
• Installation: Bolt-on, cutting not required

Included Components

• 1x 2.5" T304 stainless resonator-back exhaust assembly
• 4x 4" carbon fiber dual-wall exhaust tips
• Clamps and installation hardware

Product Description

The MBRP S46073CF Resonator-Back Exhaust System is engineered specifically for the 2018-2025 Audi S4 and S5 equipped with the 3.0-liter V6 engine and Sport Differential (excluding Cabriolet and Sportback body styles). Constructed from high-grade T304 stainless steel and featuring mandrel bends throughout the 2.5" tubing, this exhaust enhances flow over the factory setup while delivering a more engaging exhaust tone with a street-tuned profile that's moderately aggressive without excessive cabin drone. The quad rear exit configuration paired with carbon fiber dual-wall 4" tips adds a bold, performance-focused look to the rear of your Audi.

Installation is a true bolt-on design, requiring no cutting, and benefits from a flow increase of approximately 24% compared to stock. The system eliminates factory exhaust valves by using electronic valve simulators, providing a consistent tone and performance upgrade while maintaining compatibility with factory systems. Backed by MBRP's lifetime limited warranty on materials and workmanship, the S46073CF is an excellent choice for Audi enthusiasts seeking improved sound, exhaust flow, and style.