Eastwood Engineering valve controller with branded casing and wiring harness on white background

Porsche 981 GT4/GTS/S Exhaust Valve Controller

£235.00
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Eastwood Engineering valve controller with branded casing and wiring harness on white background

Porsche 981 GT4/GTS/S Exhaust Valve Controller

£235.00

Enhance Your Porsche 981 Exhaust Sound with Our Plug-and-Play Valve Controller

Unleash the full character of your Porsche 981 with our premium exhaust valve controller, engineered to keep the exhaust valves open throughout the entire rev range – from idle to redline. Unlike the factory calibration, which closes the valves below ~4,000 rpm to comply with EU noise regulations, our controller delivers a richer, more engaging exhaust note whenever you want it.

Key Features

• True plug-and-play installation
• No cutting, splicing, or permanent modifications
• 100% reversible – return to OEM at any time
• Retains full factory Porsche Sport Exhaust functionality
• Remote-controlled operation
• Discreet engine bay installation

How It Works

The system consists of a bespoke wiring loom that connects directly to two factory connectors within the engine bay, a compact control module, and a remote handset. Installation is straightforward and completely non-invasive.

When the controller is activated, the exhaust valves remain open across the full rev range. When switched off, the vehicle reverts to standard Porsche OEM exhaust behaviour with no change to factory operation.

Vehicle Compatibility

• Porsche 981 GT4
• Porsche 981 GTS
• Porsche 981 Boxster S
• Porsche 981 Spyder


 

Aftermarket Product Use & Vehicle Liability Disclaimer

All products supplied by Eastwood Engineering, including exhaust valve controllers and electronic control modules, are designed for off-road, track, or show use only. In some regions, these products may not meet emissions standards, noise limits, or road-use regulations.

By purchasing and installing any product from Eastwood Engineering, you acknowledge and accept responsibility for:


  • Making sure the product is used in line with all relevant local, national, and international laws and regulations.

  • Any changes made to your vehicle and how they may affect performance, safety, drivability, and emissions.

  • Any potential impact on your vehicle’s warranty, insurance, and resale value.

Eastwood Engineering cannot be held responsible for any damage, malfunction, fines, losses, injuries, or legal issues that may result from the purchase, installation, or use of our products. All products are installed and used at the customer’s own risk.

For best results and peace of mind, we strongly recommend professional installation by a qualified technician.