R2P Primary Downpipes with Heat Shielding for BMW M5 F90 / M8 F91 F92 F93 (102mm) – Maximum Performance for S63 V8 Engine

The R2P Primary Downpipes are a high-performance upgrade for the BMW M5 F90 and M8 (F91, F92, F93) equipped with the S63 4.4L Twin-Turbo V8 engine. Made from 304 stainless steel with a 1200°C ceramic thermal coating, these downpipes eliminate the restrictions of the original system and improve exhaust flow, allowing the turbos to respond more quickly. Their 102 mm (4 inch) diameter and 3D design with no internal reductions guarantee optimal flow, while the thermal insulation protects sensitive engine bay components and keeps the intake air temperature stable.

Features

• Ceramic coating up to 1200°C: Reduces engine bay temperature, protects wiring and hoses, and improves intake air density.
• 102 mm (4 inch) diameter: Eliminates the factory system's restrictions for unobstructed gas flow.
• Full 3D design: No sharp reductions or restrictions that compromise performance.
• Hand-built 304 stainless steel: Total corrosion resistance and extreme durability, even in intensive track use.
• CNC-machined V-Band connections: Precise fit and perfect, leak-free sealing.
• Compatible with OEM heat shields: Maintains the factory thermal protection.

Technical specifications

• Brand: R2P
• Material: 304 stainless steel
• Coating: Ceramic, resistant up to 1200°C
• Pipe diameter: 4 inches (102 mm)
• Product type: Primary downpipe set
• Geometry: Unrestricted 3D design

Compatibility

S63 4.4L Twin-Turbo V8 engine:

• BMW M5 (F90): 2018 - 2020
• BMW M8 Coupe (F92): 2019 - 2020
• BMW M8 Cabrio (F91): 2019 - 2020
• BMW M8 Gran Coupe (F93): 2019 - 2020

Performance

The R2P downpipes eliminate the restrictive primary catalytic converters of the original system, allowing gains of up to an additional 50 hp and 80 Nm with a Stage 2 remap. Unlike alternatives without thermal coating, these downpipes keep intake air temperatures (IAT) stable, preventing power losses from excessive heat. In addition, the V8 engine sound becomes deeper and more aggressive, highlighting the sporty character of the M models.

Frequently asked questions

• Is it necessary to remap the ECU? Yes. To eliminate the check engine light (CEL) and take advantage of the full potential, a Stage 2 remap is recommended.
• What benefits does the thermal coating provide? It protects wiring and hoses from the turbos' radiant heat, and maintains exhaust gas speed to improve turbo response.
• How does the sound change? It produces a much deeper, sportier V8 sound, emphasizing the character of the M models.

Shipping and warranty

• Availability: In stock for immediate shipping
• Shipping: Fast and secure
• Warranty: Perfect fit guaranteed and certified thermal resistance

This product is designed for use in competition or closed circuits. Consult current local regulations before installation.