Stone Exhaust Volkswagen EA888 MK7.5 Golf R Cat-Back Valvetronic Exhaust - Part Number GP509S
Transform your Volkswagen Golf R MK7.5 with the Stone Exhaust Valvetronic Cat-Back Exhaust System for the EA888 engine. This premium valved catback unlocks performance, soundtrack and everyday refinement for the 2016+ VW Golf R. Engineered with 3D scanning, reverse engineering and in-house dyno development, the Stone Exhaust delivers precision OEM fitment, proven power gains and an addictive tone without the unwanted drone.
We have fitted and used this system on customer cars at Nforcd and feedback has been overwhelmingly positive. Customers love the deep, refined sound with valves closed and the aggressive, motorsport-style note when the valves are open. If you are searching for a VW Golf R cat-back exhaust, Volkswagen Golf R MK7.5 valved exhaust, EA888 Golf R performance exhaust or a valve-controlled Golf R catback, this is the upgrade to choose.
Why choose the Stone Exhaust for your VW Golf R MK7.5
- Designed specifically for the Volkswagen Golf R MK7.5 EA888 - perfect OEM fitment
- Valvetronic dual-valve system with remote control - ON, OFF and AUTO modes
- Plug and play OBDII controller - quick and simple to set up
- One piece design for optimal flow and strength
- Eliminates drone found on the standard exhaust system
- In-house R and D, 3D scanning and reverse engineering for precision
- Dyno developed in house for real performance gains
- Mechanical welding with precision for durability and reliability
- Stone signature exhaust sound with daily-drivable refinement
Valvetronic control - quiet when you want, loud when you want
The Stone Valvetronic system gives you total control of your Golf R exhaust. Use the remote to toggle ON for maximum sound, OFF for a discreet, neighbour-friendly drive or AUTO to open and close the valves at your chosen RPM. The system is plug and play via the OBDII port and can be installed in minutes, making it one of the easiest Volkswagen Golf R valved exhaust upgrades on the market.
OPF delete option for OPF equipped cars
Stone offers an OPF delete which can be included free of charge. This allows you to install the Stone cat-back exhaust on OPF equipped cars without triggering an error code, so coding out the OPF error on the ECU is not required.
Engineered for performance and precision
Stone engineers 3D scan the OEM Volkswagen system to map pipe diameters, routing and bend angles, then iterate with 3D simulation to optimise exhaust gas flow, thermal behaviour and pressure zones. The 7-axis CNC bending process achieves up to 98 percent roundness with an accuracy error under 0.025 mm, reducing turbulence and preventing weld fractures. Crisscross and overlapping welding plus direct spot welding further increase strength at high-temperature zones for long-term reliability.
Performance gains
- Power gain: +12.7 Ps at 0 rpm
- Torque gain: +44.12 Nm at 0 rpm
Compatibility
- Volkswagen Golf R MK7.5 2016+ with EA888 engine
Ideal search terms customers use for this product
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Installation and fitting
The Stone Valvetronic remote module connects via the OBDII port for quick installation. For professional fitting, book with Nforcd in Warwickshire - request a quote at Sales@nforcd.com.
Technical highlights
- Dual-valve Valvetronic system - ON, OFF and AUTO modes
- One piece design for maximised flow
- 7-axis CNC bending for accuracy and roundness
- Crisscross and overlapping welding at high stress zones
- Direct spot welding for added strength
- In-house dyno development
What you get
- Stone Exhaust Volkswagen EA888 MK7.5 Golf R Cat-Back Valvetronic Exhaust
- Valvetronic remote control with ON, OFF and AUTO settings
- Plug and play OBDII control module
- OPF delete option included free of charge for OPF equipped cars
Part number and warranty
- Part number: GP509S
- Manufacturer: Stone Exhaust
- Warranty: Stone Exhaust 2 Year Warranty
Trusted by enthusiasts in the UK
Nforcd is your UK specialist for VW Golf R performance exhausts. We have installed this Stone Exhaust cat-back on MK7.5 Golf R models and customers consistently report superb build quality, perfect fitment, strong performance and a versatile, valved sound that suits daily driving and spirited use. If you want a Volkswagen Golf R MK7.5 cat-back exhaust that is valved, plug and play, drone free and performance focused, the Stone Exhaust GP509S is the standout choice.
