Stone Exhaust Porsche E3 Cayenne S 2.9T Cat-Back Valvetronic Exhaust System
Unlock the sound and performance your Porsche Cayenne S 2.9T deserves with the Stone Exhaust Valvetronic cat-back. Designed specifically for the Porsche E3 Cayenne S 2.9T 2019 onwards, this premium performance exhaust delivers an aggressive sports tone on demand, refined cruising with no drone, and precision OEM fitment. Developed with 3D scanning, reverse engineering and in-house dyno testing, it is the ultimate Porsche Cayenne S cat-back exhaust upgrade for power, response and sound control.
We have supplied and fitted Stone Exhaust systems for Porsche owners across the UK and customer feedback has been outstanding. The build quality, fitment and sound control with the Valvetronic remote make this a go-to Porsche Cayenne S performance exhaust for daily driving and spirited runs alike.
Why choose the Stone Exhaust Cayenne S 2.9T Valvetronic cat-back
- Precision engineered for Porsche E3 Cayenne S 2.9T 2019 onwards with 100 percent OEM fitment
- Valvetronic system with remote control for ON, OFF and AUTO valve modes
- Plug and play installation for the control unit via the OBDII port
- One piece design with exceptional welding quality for strength and durability
- 3D scanning and reverse engineering of the OEM exhaust for perfect routing and clearances
- In-house dyno developed for proven performance gains and improved throttle response
- Tuned to eliminate cabin drone compared to the factory system
- OPF delete solution available free of charge for OPF equipped cars to avoid error codes
- 7-axis CNC bending for high roundness and smooth flow to minimise restrictions
- Crisscross and overlapping weld techniques plus direct spot welding for reliability at high temperatures
Valvetronic control - sound on demand
The Stone Valvetronic system gives you total control over exhaust valves with the supplied remote. Choose:
- ON - valves open for maximum sound and flow
- OFF - valves closed for a refined, neighbour-friendly drive with minimal drone
- AUTO - valves open automatically at your chosen RPM threshold
The control unit connects via the OBDII port for simple, clean and quick installation.
Engineered to fit and perform
Stone Exhaust engineers 3D scan the OEM Porsche system to optimise pipe diameter, routing and bend angles. This data-driven approach, combined with advanced 7-axis CNC bending and high precision welding, creates a smooth flowing cat-back that enhances performance while retaining excellent drivability. The result is a Porsche Cayenne S 2.9T exhaust upgrade that fits like factory, sounds incredible and performs as a true performance exhaust should.
Key features at a glance
- Vehicle: Porsche E3 Cayenne S 2.9T 2019 onwards
- Type: Cat-back Valvetronic exhaust system with dual valves
- Control: Remote ON, OFF, AUTO modes via plug and play OBDII module
- Design: One piece construction, precision mechanical welding
- Development: In-house R and D, 3D scanning, reverse engineering, dyno tested
- Refinement: Drone reduction compared to the stock exhaust
- OPF: OPF delete option included free to prevent error codes on OPF cars
- Warranty: Stone Exhaust 2 year warranty
- Part number: QP509BSQ
Compatibility
Fits the following Porsche models:
- Porsche Cayenne S E3 2.9T 2019 onwards
Installation and fitting
Professional fitting recommended. We offer installation at Nforcd in Warwickshire with experienced technicians who have hands-on experience with Stone Exhaust systems on Porsche. Request a fitting quote by emailing Sales@nforcd.com.
Valvetronic installation video
Photos and sound
See the Stone Exhaust Porsche Cayenne S 2.9T cat-back Valvetronic system below and hear how it transforms your Porsche in the sound clip.
OPF information
For OPF equipped cars, Stone offers an OPF delete solution included free of charge. This prevents OPF related error codes, so ECU coding is not required when installing this Stone cat-back exhaust system.
Manufacturer
Stone Exhaust
Warranty
Stone Exhaust 2 year warranty
Popular search terms
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Part number
QP509BSQ
Have questions or want us to supply and install your Stone Exhaust Porsche Cayenne S 2.9T cat-back Valvetronic system in Warwickshire? Email Sales@nforcd.com and our team will be happy to help.