PRE-ORDER ITEM! Deliveries starting March 2027!
GRAIL Downpipe – BMW M5 F90 OPF, S63 4.4 V8 (2018–2023)
Designed for the BMW M5 F90, the GRAIL Downpipe replaces the original primary and secondary catalytic converters and takes the soundscape of the 4.4-liter twin-turbo V8 engine to a new level. The product is intended for 2018–2023 M5 F90 models equipped with an OPF particulate filter.
The original gasoline engine particulate filter (OPF/GPF) remains completely unchanged in the vehicle. It is an essential part of the system's operation and sound insulation. The product is not suitable for vehicles without an OPF particulate filter.
Made from L304 material, the GRAIL Downpipe is type-approved in accordance with the UN ECE R103 standard. According to the manufacturer, it can be combined with the original exhaust system, a GRAIL exhaust system, or other ECE type-approved exhaust systems in accordance with the terms of approval.
Deliveries start in March 2027.
What is replaced in the vehicle?
The key is the system's connection point: where does the original exhaust system end and where does the replacement part begin?
Remain unchanged
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Engine control and engine programming
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In-vehicle diagnostics (OBD)
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Exhaust system from the center section backwards
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Original exhaust system mounting points
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Gasoline engine particulate filter (OPF/GPF)
Replaced
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Original primary and secondary catalytic converters
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Downpipes made of L304 stainless steel
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Exhaust system sound characteristics across the entire RPM range
Compatibility – is the product suitable for your car?
Suitable vehicles
The GRAIL Downpipe is designed for the following vehicle:
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Make and model: BMW M5 F90
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Engine: S63, 4.4-liter V8
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Model years: 2018–2023
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Particulate filter: OPF/GPF must be installed
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Power: 441 / 460 kW (600 / 625 hp)
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Displacement: 4,395 cm³
The product replaces the primary and secondary catalytic converters. The original gasoline engine particulate filter remains in place and continues to operate as part of the exhaust gas system.
Not suitable
The particulate filter is an important part of the exhaust system's sound insulation. For this reason, the product is intended exclusively for vehicles equipped with an OPF particulate filter.
Technical specifications
| Feature |
Information |
| Vehicle reference |
SP-201767 |
| Make |
BMW |
| Model |
M5 F90 OPF |
| Body style |
Sedan (F90) |
| Model years |
2018–2023 |
| Engine |
S63 |
| Power |
441 / 460 kW (600 / 625 hp) |
| Displacement |
4,395 cm³ |
| Material |
L304 stainless steel |
| Connection / construction |
Replaces primary and secondary catalytic converters; OPF remains |
| Approval |
ECE / UN R103 |
| Quality management system |
ISO 9001 |
Registration, inspection and emission requirements
The GRAIL Downpipe designed for the BMW M5 F90 S63 (2018–2023, OPF-equipped vehicles) is type-approved in accordance with the UN ECE R103 standard, according to the manufacturer's declaration. The product replaces the original primary and secondary catalytic converters, but the gasoline engine particulate filter remains in the vehicle.
According to the manufacturer, the modification does not need to be registered separately when the product is used in accordance with the terms of approval with the original exhaust system, a GRAIL exhaust system, or another ECE type-approved exhaust system.