Stone Exhaust BMW S63M F90 M5 OEM Integrated Valved Cat-Back Exhaust System
The ultimate BMW M5 F90 exhaust upgrade is here. The Stone Exhaust OEM integrated valved cat-back exhaust system for the BMW F90 M5 with the S63M engine delivers deeper sound, real performance gains and perfect OEM fitment. This is a premium valved catback exhaust for the M5, engineered to work flawlessly with the factory valve control for everyday comfort and full-throttle excitement. If you are searching for BMW M5 F90 exhaust, BMW M5 valved exhaust, S63M catback, OPF GPF compatible M5 exhaust or performance exhaust for BMW M5 Competition and M5 CS, this is the system you want.
Developed since 1998, Stone Exhaust starts with full 3D scanning and reverse engineering of the OEM system to guarantee a 100 percent OEM fit. With in-house dyno testing, this F90 M5 exhaust is proven for power and torque while delivering the signature Stone Exhaust note. We have supplied and fitted Stone Exhaust systems for customers and feedback has been consistently excellent on sound quality, drivability and finish. We use and recommend Stone Exhaust because it fits right, sounds right and performs.
Why choose this BMW M5 F90 valved catback
- OEM integrated valves for factory ECU control of opening and closing
- Stone Valvetronic System upgrade available for remote valve control
- Eliminates drone compared to the standard BMW M5 exhaust
- Proven gains on the dyno with improved exhaust flow
- One piece precision design with machine welding for strength
- 3D scanning, reverse engineering and in-house R&D for perfect fitment
- Plug and play OBDII controller compatibility
- OPF GPF exhaust option available for OPF equipped cars
Power and sound you can feel
Dyno developed in-house by Stone Exhaust:
- Power gain: +24.2 PS at 6081 rpm
- Torque gain: +6.9 Nm at 2902 rpm
Expect a richer, deeper V8 tone on your BMW M5 F90 S63M twin turbo while maintaining everyday refinement when valves are closed. Open the valves and enjoy an aggressive, motorsport-inspired note. This is the BMW M5 valved exhaust that delivers both performance and comfort.
Valves and control options
OEM Integrated Valve option allows the ECU to control valve opening and closing automatically. Prefer manual control on demand. Add the Stone Valvetronic System (single valve) to operate valves remotely via the Stone controller. This is ideal for drivers who want instant control of sound levels without coding.
OPF GPF cars and CEL avoidance
Running an OPF GPF BMW M5 F90. Stone offers an OPF delete solution that can be included free of charge. This allows installation of 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. A true plug and play option for OPF GPF M5 exhaust fitment.
Engineered for precision
- 7 axis CNC bending for industry-leading accuracy and roundness
- Crisscross and overlapping welding techniques to increase strength
- Direct spot welding by mechanical arms for precision and durability
Stone’s process reduces airflow obstruction and helps prevent welding fracture. Combining CNC bending, reverse engineering and 3D scanning delivers a precisely molded exhaust with outstanding fitment and quality.
Installation and fitting
Approximate installation time is 2 hours. For professional fitting, choose Nforcd in Warwickshire for expert installation of your BMW M5 exhaust upgrade. Request a fitted price quote at Sales@nforcd.com.
Features at a glance
- Stone Valvetronic BMW S63M F90 M5 exhaust system
- Optional Stone Valvetronic System for remote valve control
- OPF GPF exhaust option design
- Plug and play OBDII controller
- One piece design
- Machine welding
- In-house research and development
- 3D scanning and reverse engineering
- Dyno developed in-house
- Eliminates drone found on the standard exhaust system
Videos
R&D and manufacturing detail
Stone Exhaust engineers utilise 3D scanning of OEM parts to analyse pipe diameter, routing and bend angles. 3D simulation optimises exhaust gas flow, thermal behaviour and pressure zones for the S63M exhaust. Progressive improvements are made until the best performance is achieved.
With state-of-the-art bending equipment, Stone achieves impressive roundness and consistency to minimise airflow disruption. Combined with advanced welding techniques, this results in a robust, high quality BMW M5 F90 performance exhaust.
Compatibility
BMW M Series with S63M engine:
- M5, M5 Competition, M5 CS (2016+ F90)
Warranty
Stone Exhaust 2 year warranty.
Part numbers
- AP535 (Non-OPF)
- AP535G (OPF)
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