Stone Exhaust Volvo V40 T4 1.6T Cat-Back Valvetronic Exhaust Y555 Y556
Unlock the sound and performance your Volvo V40 T4 1.6T deserves with the Stone Exhaust Cat-Back Valvetronic system. Engineered specifically for the Volvo V40 T4 1.6 turbo Y555 Y556 platform and 2015-on cars, this valve-controlled cat-back exhaust delivers a deeper, richer exhaust note, genuine power gains and perfect OEM fitment. If you are searching for Volvo V40 T4 1.6T cat-back exhaust, Volvo V40 performance exhaust, Volvo V40 valve exhaust or Volvo V40 T4 Valvetronic exhaust, this is the proven upgrade.
Developed with 3D scanning, reverse engineering of the OEM system and in-house dyno testing, Stone Exhaust has created a plug-and-play, drone-free, remote-controlled cat-back that feels refined when closed and aggressive when open. We have run this system ourselves and customer feedback has been consistently positive on sound quality, fitment and daily drivability.
Why choose this Volvo V40 T4 1.6T cat-back exhaust
- Direct fit for Volvo V40 T4 1.6T Y555 Y556 2015+ cat-back application
- Valvetronic valve-control for quiet or sport sound at the press of a button
- Remote control with ON, OFF and AUTO modes with RPM-based opening
- OBDII plug-and-play controller for quick and clean installation
- One piece design for durability and easy alignment
- Eliminates the drone common on the standard exhaust system
- 3D scanned and reverse engineered for 100 percent OEM fitment
- Dyno developed in house for real performance improvements
- Precision mechanical welding and advanced manufacturing for reliability
Valvetronic control for the perfect Volvo V40 exhaust sound
With Stone Valvetronic you control the exhaust sound of your Volvo V40 T4 1.6T. Use the remote to switch between:
- ON – valves open for maximum flow and a sporty, deeper tone
- OFF – valves closed for refined, near-OEM quiet cruising
- AUTO – valves open automatically at a predefined RPM for the best of both
The system connects via the OBDII port and is genuinely plug and play. Enjoy a premium, valve-controlled exhaust without complex wiring.
Engineered for performance and precision
Stone Exhaust uses leading manufacturing to build a high quality Volvo V40 T4 cat-back exhaust:
- R&D and 3D scanning of the OEM Volvo V40 1.6T exhaust for exact fit
- 7-axis CNC bending for up to 98 percent roundness and exceptional flow
- Accuracy tolerance under 0.025 mm for consistently precise assembly
- Crisscross and overlapping welding techniques for strength under extreme temperatures
- Direct spot welding by mechanical welding arms for durability and a clean finish
OPF delete support
Running an OPF-equipped Volvo V40 T4 1.6T Y555 Y556? Stone offers an OPF delete solution that can be included free of charge. This allows you to install the Stone cat-back on OPF cars without triggering an error code. No ECU coding is required.
Compatibility
Engine: 1.6T
- Volvo V40 T4 1.6T Y555 Y556 2015+
Installation and fitting
This is a bolt-on cat-back exhaust for the Volvo V40 T4 1.6T with a plug-and-play OBDII Valvetronic controller. Professional fitting recommended for best alignment and results.
Prefer us to install it for you? Nforcd offers in-house fitting in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Part number
OP501S
Manufacturer and warranty
Manufactured by: Stone Exhaust
Warranty: Stone Exhaust 2 Year Warranty
Trusted by enthusiasts
Customers choose this Stone Exhaust Volvo V40 T4 1.6T cat-back for its deep sound, zero drone on the motorway, smooth valve control and OEM-level fitment. If you are searching for the best Volvo V40 T4 cat back exhaust, Volvo V40 T4 performance exhaust or Volvo V40 1.6T Valvetronic exhaust, this is the upgrade that delivers.
