Audi B8 / B8.5 S4 & S5 Valved Exhaust System

T304 Stainless Steel, High-Pitch X-Pipe, Vacuum Valve Control

Overview

Transform your supercharged V6 into a true auditory experience.
Our Valvetronic Designs Valved Exhaust System for the Audi B8 and B8.5 S4/S5 delivers a unique, high-pitch wail while retaining low-end rawness for a sound profile unlike anything the platform has heard before.

Constructed entirely from T304 stainless steel and featuring our high-pitch X-pipe technology, this system runs 2.5 inches from front to rear, unlocking an exhilarating tone across the entire rev range. With integrated vacuum-actuated valves controlled via an included key fob remote, you have instant flexibility to switch from refined cruising to an aggressive, motorsport-inspired soundtrack.

Why It Works

• High-Pitch X-Pipe Technology: Creates a sharper, more exotic tone while enhancing flow.

• Vacuum Valve Control: Allows on-demand sound control from the included key fob remote.

• Full Mandrel-Bent Design: Optimized flow for improved throttle response and power delivery.

Sound & Control

• Valves Closed: Quiet enough for early morning starts and comfortable highway cruising.

• Valves Open: Releases the full character of the supercharged V6 with both low-end depth and high-pitch excitement.

• Remote Control: Operate valves instantly from the driver’s seat using the included key fob system.

Construction & Options

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

• Weight Savings: 12.3 lb lighter than the factory exhaust.

• Craftsmanship: Precision TIG welds and mandrel bends for maximum flow and strength.

• Diameter: 2.5" tubing from front to tips.

Fitment

• 2010–2016 Audi S4 (B8/B8.5)

• 2010–2016 Audi S5 (B8/B8.5)

Installation Notes

• Direct OEM replacement—no permanent modifications required.

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

What’s Included

• T304 stainless steel valved exhaust system

• Integrated high-pitch X-pipe

• Vacuum-actuated valves with key fob control system

• All necessary clamps and hardware

Specifications

• Tubing Diameter: 2.5" from front to tips

• Material: T304 stainless steel

• Valves: Vacuum-actuated, remote controlled

• Weight Savings: 12.3 lb lighter than OEM

🎧 Hear It in Action:

• Sound Clip 1

• Sound Clip 2

PLEASE EMAIL US AT: CUSTOMERSERVICE@VALVETRONIC.COM WITH ANY QUESTIONS

Orders are processed same or next business day. Shipping times vary depending on the product, shipping service, and whether freight shipping is required. While we ensure all inventory levels are current and accurate, they can change due to logistics and inventory feeds. Standard shipping typically takes 3-7 business days, but some items may require additional time depending on their origin. Feel free to call us anytime for the latest status of your order.