Armytrix Porsche Panamera 971 4S 2.9L Twin Turbo (2017-2024) valvetronic exhaust
Unleash the true sound and performance of your Porsche Panamera 971 4S with the ARMYTRIX Valvetronic Exhaust System, precision-crafted for both Non-OPF and OPF-equipped models. Designed to suit Panamera 4S and Panamera 4S Sport Turismo variants, this system delivers a deep, commanding exhaust note, sharper throttle response, and seamless control over your exhaust tone—all at your fingertips.
Whether you opt for the full exhaust system or the secondary de-catted downpipe + Valvetronic cat-back setup, this is the upgrade your Panamera was built for.
Vehicle Fitment:
-
Model: Porsche Panamera 971
-
Variants: Panamera 4S / Panamera 4S Sport Turismo
-
Years: 2017–2024
-
Engine: 2.9L V6 Twin Turbocharged
-
Emission Type: Compatible with both Non-OPF and OPF vehicles
-
Drive Orientation: Supports both Left-Hand Drive & Right-Hand Drive cars
-
VIN Verification Required for precise fitment
-
Executive (Long Wheelbase) models require adapters – contact us before purchase
-
Control System: ARMYTRIX OBDII Plug-and-Play Valve Control Module required
Performance Recommendations:
-
For Best Sound & Performance:
-
Install full system or
-
Pair secondary de-catted downpipe with Valvetronic cat-back exhaust
-
-
For OPF-equipped vehicles:
-
Primary and secondary de-catted downpipes must be installed together for proper fitment and performance
-
Performance Features:
2 x 2.5” Mandrel-Bent Main Pipes
Engineered for twin-turbo efficiency, these pipes improve exhaust gas velocity, reduce backpressure, and enhance throttle responsiveness for an overall boost in drivability and sound quality.
Quad 4” Signature Exhaust Tips
A bold finish to your Panamera’s rear design—choose from Chrome, Matte Black, or Burnt Titanium finishes for a powerful, customized look.
Check Engine Light (CEL) Suppression Tech
Exclusive built-in fault-code clearing system helps eliminate CEL issues caused by OPF delete or decatted downpipes, ensuring a smoother upgrade process.
Valvetronic Sound Control via OBDII Module:
Effortlessly adjust your Panamera’s exhaust tone with the push of a button:
-
Quiet Mode: Valves closed – subtle and refined for city or highway comfort
-
Race Mode: Valves open – high-performance sound with aggressive twin-turbo growl
-
Auto Mode: Valve behavior adapts to engine RPM and throttle input for dynamic driving
Control Options:
-
Wireless Remote Control – included with the system
-
ARMYTRIX Mobile App (iOS/Android) – adjust settings, monitor performance, and switch modes in real-time
Installation Made Easy:
-
Plug-and-Play OBDII Module
No complicated wiring required—installation time is reduced by up to 30% vs. traditional valve setups -
Direct Bolt-On Design
Mounts using OEM points—no cutting, no welding, and no permanent modifications needed
(Adapters required for Executive long-wheelbase variants)
What’s Included:
-
ARMYTRIX Valvetronic Exhaust System (Cat-Back or Full System)
-
Quad 4” Performance Exhaust Tips (multiple finish options)
-
Secondary De-Catted Downpipe (when selected)
-
Wireless Remote Control Kit
-
OBDII Plug-and-Play Valve Control Module
-
All Required Mounting Hardware
-
Digital Installation Instructions
Compatibility Notes:
-
Designed for Porsche Panamera 971 4S / 4S Sport Turismo (2017–2024)
-
Fits both Non-OPF and OPF vehicles
-
Executive (LWB) models require adapter pipes – consult before purchasing
-
Works with both LHD and RHD configurations
-
Retains factory exhaust control button functionality (if equipped)
-
Professional installation strongly recommended, especially for OPF-equipped cars
Make Your Panamera Sound as Fast as It Feels
The ARMYTRIX Valvetronic Exhaust System doesn’t just wake up your Panamera—it redefines the driving experience. Choose your sound, command attention, and make your 4S stand out from the crowd with an exhaust note worthy of a true performance sedan.
More Sound. More Control. More Soul — Only with ARMYTRIX.
Couldn't load pickup availability
Get a Free AT Air Freshener when you buy any merchandise!
T&C's
T&C's
All purchases on this website our subject to our Terms and Conditions. Please ensure you have read and understood these before making a purchase. If you have any questions, please feel free to contact us and we will endeavour to answer any questions you may have.
PLEASE BE AWARE: Sports cats can NOT legally be installed on a vehicle for use on a public road that was manufactured after 1st March 2001 unless type ECE 103R approved - this can be identified in either the product description and/or in the Technical Information section listed. If you have any doubt on this approval, please contact us immediately for confirmation. Fitting a De-Cat/Cat Bypass, DPF delete/bypass or GPF delete/bypass to a vehicle that is to be used on UK roads will cause the vehicle to fail the MOT emissions test, therefore rendering it unroadworthy and illegal to be used on the road. Therefore, any such products are strictly sold as off-road or motorsport use only and NOT for road use. The vehicle should be transported from place to place via a trailer, flatbed or other recovery means.
Stock Availability
Stock Availability
Due to the high volume of custom orders and special requests we receive daily, it’s not always possible to have every item readily available in our warehouse at all times. While we strive to maintain stock for popular products, some items may require additional processing time. If you need a product urgently, we highly recommend reaching out to our sales team here before placing your order to confirm availability and estimated delivery times.
Please Note:
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our Bristol Headquarters.
- Shipping estimates are based on courier delivery times and don't include time to despatch.
Delivery & Returns
Delivery & Returns
At AT Store, we understand the importance of timely delivery when it comes to your orders. Our goal is to have your products shipped on the same day we receive your order. We prioritise efficiency and strive to provide you with a seamless delivery experience.
Same-Day Shipping
We aim to dispatch your orders promptly to ensure minimal waiting time for our customers. Orders received before 15:00 (GMT) on business days will typically be processed and shipped on the same day. Orders received on weekends/holidays will be processed on the next business day.
Communication on Delays
While we make every effort to ship your orders promptly, there may be unforeseen circumstances or stock availability issues that could cause delays. In such cases, a dedicated member of our sales team will personally reach out to you to inform you of any delays and provide updates on the status of your order.
Akrapovic Products Lead Time
Please note that for Akrapovic products, there may be a lead time of up to 10 working days depending on current stock levels. Our team will inform you promptly if your order falls within this category and provide you with an estimated delivery date.
Tracking Information
Once your order has been dispatched, we will provide you with a tracking number via email. Additionally, the tracking number will be added to your order notes on our website. This allows you to easily track the progress of your delivery and stay informed about its whereabouts until it reaches your doorstep.
International Shipping
We now calculate international shipping costs separately to ensure the most accurate and competitive rates. If you’re placing an order from outside the UK, please contact us for a shipping quote before completing your purchase. Our team will provide you with the best available options tailored to your location.
We are committed to providing you with the best possible delivery service, ensuring that your orders reach you in a timely manner and in pristine condition. If you have any questions or concerns regarding our delivery process, please don't hesitate to contact us for assistance.
For information regarding Returns, please refer to our T&C's.
Email: Store@avontuning.co.uk
Phone: 01454 800 117
Online we currently accept payment from the methods listed above including a wide range of finance options.
Finance Options
In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your vehicle now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
Avon Tuning Limited is an Introducer Appointed Representative of Social Money Limited t/a Payl8r who is authorised by the FCA under Ref. Number 675283. Credit is subject to creditworthiness and affordability assessments. Missed payments may affect your credit file, future borrowing and incur fees.
What Our Customers Are Saying
Mark W.
“Thanks to James and Marcus at Avon Tuning for arranging and fitting a Quicksilver exhaust to my new Defender V8. Everything went like clockwork and it sounds awesome”
Paris C.
"Would highly recommend Avon Tuning. They're extremely knowledgeable, outstanding customer service - we even had a lovely courtesy car for the few hours they had ours. You're in good hands with Avon Tuning!"
Richard N.
"I’d give 6 stars if they’d let me! Avon Tuning did the most fantastic job. I arranged everything with James at the beginning and he was so helpful, guiding me to the correct exhaust system (Miltek) and a Stage 1 Remap"
Peter B.
"Amazing service from James and the team at Avon Tuning.Fitted a new exhaust system on my Aston Martin Vantage, not only does it sound and look great but it puts smiles per miles for me."
