BMW M5 F90 / M8 S63 4.4T - Exhaust Downpipe with Air Intakes Combo

Upgrade your BMW M5 F90 (2018–2023) equipped with the S63 4.4L Twin-Turbo V8 engine with this high-flow Exhaust Downpipe and Cold Air Intakes combo. Engineered to maximize power, reduce backpressure, and boost turbo response, this kit delivers impressive performance gains and an aggressive exhaust note.

Fitment:

• BMW M5 F90 (2018–2023)

• Engine: S63 4.4L Twin-Turbo V8

• Transmission: Automatic (ZF 8HP)

Kit Includes:

• High-flow catless or catted downpipes crafted from T304 stainless steel or optional titanium

• Mandrel-bent tubing and precision TIG welds with laser-cut flanges for optimal flow and durability

• Dual open-air cone filters or sealed carbon fiber intake boxes with optional carbon fiber intake tubes

• Compatible with OEM and aftermarket exhaust systems

Performance Benefits:

• Gains of +30 to +60 HP depending on tuning and setup

• Sharper turbo spool and throttle response

• Louder, deeper exhaust tone with aggressive sound character

• Prepares your vehicle for Stage 2+ ECU tuning for maximum performance

Additional Notes:

• ECU tuning recommended, especially with catless downpipes

• Emissions compliance may vary by region; check local regulations

• Potential for CEL activation without proper tuning

Optional Add-ons:

• Heat wraps or thermal coatings for effective heat management

• O2 sensor spacers to help mitigate CEL

• Carbon fiber intake boxes for enhanced under-hood aesthetics

Unlock the full potential of your BMW M5 F90 or M8’s S63 engine with this expertly crafted Exhaust Downpipe and Air Intake combo—designed to elevate both performance and sound.