SKU: 21618669602

Audi B9 S4 / S5 Valved Sport Exhaust System

Sale price$1124.99 Regular price$1249.99
Save 10%

Pay in installments of $312.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Audi B9 S4 / S5 Valved Sport Exhaust SystemAudi B9 S4 & S5 Valved Exhaust System Full T304 Stainless Steel System with Electronic Valve Control Overview The Audi B9 S4 and S5, powered by the EA839 3. 0L V6, have impressive performance potentialbut the stock exhaust hides much of this engines true character. The Valvetronic Designs Full Valved Exhaust System unleashes its voice, delivering an aggressive, motorsport inspired tone when desired, and stock like refinement when needed. Unlike

Audi B9 S4 & S5 Valved Exhaust System

Full T304 Stainless Steel System with Electronic Valve Control


Overview

The Audi B9 S4 and S5, powered by the EA839 3.0L V6, have impressive performance potential—but the stock exhaust hides much of this engine’s true character. The Valvetronic Designs Full Valved Exhaust System unleashes its voice, delivering an aggressive, motorsport-inspired tone when desired, and stock-like refinement when needed.

Unlike typical setups requiring multiple components from different vendors, our system is engineered as a complete solution—from the OEM or aftermarket downpipe all the way to the exhaust tips. This single-package design eliminates the need for mixing and matching resonator sections or axle-backs from other brands, ensuring perfect fitment, seamless performance, and consistent sound quality.

With valves open, expect a bold exhaust note, pronounced overrun crackles, and a commanding presence. With valves closed, the car returns to quiet factory manners, with zero drone when paired with the OEM downpipe.

For those upgrading from the V8-powered B6 or B7 S4, our system delivers the level of engagement and emotional sound you’ve been missing—ensuring your B9 ownership experience is just as exciting.


Why It Works

  • One-Piece System Design: Eliminates the need for mixing components from multiple vendors.

  • Electronic Valve Control: Switch between aggressive and refined sound instantly.

  • Mandrel-Bent Construction: Maximizes flow for improved throttle response and power.


Sound & Control

  • Valves Open: Aggressive tone with rich midrange and sharp overrun crackles on deceleration.

  • Valves Closed: Quiet, refined, and OEM-like for comfortable daily driving.

  • No Drone: When paired with the OEM downpipe, cabin comfort is unaffected.


Construction & Options

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

  • Weight Savings: 16.4 lb lighter than the OEM exhaust system.

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

  • Tips: Includes premium exhaust tips for a finished, performance-oriented look.


Fitment

  • 2017–2024 Audi S4 (B9)

  • 2018–2024 Audi S5 (B9)


Installation Notes

  • Direct-fit for sedan models.

  • Coupe models require modification to shorten the mid-section for proper fitment. Contact [email protected] for guidance.

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


What’s Included

  • Full T304 stainless steel valved exhaust system

  • Electronic exhaust valves with key fob remote system

  • All necessary clamps and hardware


Specifications

  • Tubing: Full mandrel-bent T304 stainless steel

  • Valves: Electronic, remote-controlled

  • Weight Savings: 16.4 lb lighter than OEM

  • Finish: Brushed stainless steel



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21618669602

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 25 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
H
Verified Purchase
Helena
Alexandria, US
★★★★★ 5
These are definitely indestructible
Size: Medium
Both of my dogs can destroy a ball in a matter of minutes if I let them play with them (supervised) as is. Well not with these balls. They are the ONLY ones I have found that are 100% indestructible. Please only let your dogs play with these as a toy when supervised though. They go really far when throwing them, so both dogs get a good amount of running and exercise with these. I also bought these because they have the hole in the middle of the ball which is very important in the event that a dog gets one stuck at the back of their throat. This allows them to breath unlike those without this hold. It's an unlikely event, but as dog owners, we all need to be aware of this and educate ourselves on what to do if this SHOULD happen. This isn't a scare tactic, nor a reflection of this particular brand, it can happen with any type of ball. My two dogs are about 45ish lbs and the size is perfect for them, I don't want anything smaller than this. They love them. There is no annoying squeak. Really easy to wash after use. Some balls take forever to get the slimy saliva off, but these don't.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
A
Verified Purchase
Ale quintero
Louisville, US
★★★★★ 5
He loves this ball
Size: Medium, Size: Medium
My dog loves this ball. It’s the perfect size, he enjoys playing fetch and this ball has been his fav one. Thank you guys for making my lil one happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
A
Verified Purchase
Ashley Brooks
Los Angeles, US
★★★★★ 5
Love the way this makes you shimmer and shine. It's absolutely beautiful.
Color: Light Rose Gold Body Glow, Color: Light Rose Gold Body Glow
This stuff is bomb! It is so good. It looks so good on the skin and it doesn't have a bad smell. It smells actually good. I would continue. I will continue to purchase this product. I love it that much!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
L
Verified Purchase
LinaaTrejo
Lexington, US
★★★★★ 5
Order it, you won’t regret it.
Color: Light Rose Gold Body Glow
Super glittery! Very pretty and love how it has a tint of color!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
T
Verified Purchase
TeeShirtLing
Carnegie, US
★★★★★ 4
Pretty
Color: Light Rose Gold Body Glow
This stuff has a strong scent. Sort of beachy, sunscreen smell, which is not my favorite. It is definitely shimmery. I used this for a hawaiian themed party. It was pretty! It dried down fairly quickly. I did place a towel down in my car before I got in it just in case some of it came off the back of my legs and got all over the seat. I wear black pants to work most days, and didn't want a glitter butt every day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2025

recommand products