Audi B9 RS5 Valved Exhaust System

NightRunners Performance T304 Stainless Steel System with Electronic Valve Control

Overview

The Audi B9 RS5’s 2.9L twin-turbo V6 delivers serious performance—but the factory exhaust is tuned for broad comfort and compliance, leaving much of the engine’s character understated.

The NightRunners Performance Valved Exhaust System refines the driving experience by improving exhaust flow, reducing overall system weight, and delivering a deeper, more defined tone—without sacrificing everyday usability.

Unlike pieced-together aftermarket setups, this system is engineered as a complete solution—from the OEM or aftermarket downpipes all the way down to the exhaust tips—ensuring proper fitment, balanced acoustics, and consistent performance.

With the valves open, the RS5 takes on a sharper, more engaging tone with increased turbo presence and distinct crackles. Close the valves, and the system returns to a quiet, controlled tone—making it ideal for both spirited driving and daily use.

Why It Works

• Full-System Design: Replaces the need for mixing exhaust components from different brands.

• Electronic Valve Control: Instantly switch between aggressive and refined exhaust modes.

• Optimized Flow: Mandrel-bent construction improves performance across the rev range.

Sound & Control

• Valves Open: Bold, aggressive tone with pronounced overrun on deceleration.

• Valves Closed: Quiet, comfortable OEM-like sound for everyday driving.

• Valve Delete Recommended: OEM valves can activate unexpectedly; we recommend installing a valve delete module for optimal function.

Construction & Options

• Material: T304 stainless steel for durability and corrosion resistance.

• Weight Savings: 16.3 lb lighter than OEM.

• Craftsmanship: Precision TIG welds and fully mandrel-bent tubing for strength and maximum flow.

• Tips: Includes premium exhaust tips for a refined performance finish.

Fitment

• 2018–2024 Audi RS5 Coupe (B9)

• 2018–2024 Audi RS5 Sportback (B9)

Installation Notes

• Direct replacement for the OEM exhaust.

• 100% reversible—return to stock at any time.

• ECU tune recommended for maximum performance gains and improved drivability due to reduced back pressure.

• Purchaser/installer must verify compliance with local emissions laws before purchase and installation.

What’s Included

• Full T304 stainless steel valved exhaust system

• Electronic exhaust valves (OEM delete module recommended)

• All necessary hardware and clamps

Specifications

• Material: T304 stainless steel

• Valves: Electronic, rapid open/close

• Weight Savings: 16.3 lb lighter than OEM

• Finish: Brushed stainless steel