BMW M5 | M8 (F90/F91/F92/F93) Primary and Secondary Downpipes, Intakes, Filters, and Tuning Package (Bootmod 3 or MHD) | FEMTO Package

Unlock the full performance potential of your BMW M5 or M8 (F90/F91/F92/F93) with Project Gamma’s complete downpipe, intake, and ECU tuning package. Designed for serious performance gains, our high-flow downpipes are paired with premium silicone intake systems and your choice of Bootmod3 or MHD ECU tuning — giving you the flexibility to tune your vehicle on the platform you prefer for maximum results.

This all-in-one performance bundle is engineered to improve exhaust flow, increase airflow, and unleash significant horsepower and torque gains — all while adding aggressive induction sound and a clean engine-bay aesthetic. 

Package Highlights

🔥 Project Gamma High-Flow Downpipes

Project Gamma downpipes for the M5 and M8 models feature a high-flow 3” construction with precision CNC-machined stainless steel v-band transitions for optimal exhaust flow. Unlike competitors that constrict near the turbos, our downpipes maintain a full 3D diameter throughout for maximum flow and performance gains when tuned.

• Handcrafted from 304 stainless steel

• Designed for tuning and performance builds

• Gains up to ~50+ HP and ~60+ lb-ft torque with proper calibration

• Improved turbo response, reduced lag, and enhanced sound

🌀 Project Gamma Silicone Intake System & Filters

Our intake system is engineered using 4-layer reinforced silicone with an oil-resistant inner lining and precision aluminum connectors that ensure improved airflow and durability. The larger internal diameter and smooth airflow path deliver:

• Increased horsepower and response

• Faster turbo spool

• Enhanced throttle feel and acceleration

• Aggressive induction sound and OEM-plus fitment

The reinforced silicone construction also prevents collapsing under high boost pressures and high-flow filter setups.

Note: Please select your preferred intake color and filter color at checkout.

⚙️ ECU Tuning Options (Choose at Checkout)

Take full advantage of your new hardware by selecting one of the supported ECU tuning platforms:
✔ Bootmod3
✔ MHD

Both platforms allow for professional calibrations that unlock performance while ensuring smooth power delivery and reliability. You will need an ENET cable and a compatible device to flash your vehicle — email us with any questions regarding cable compatibility.

🔧 Stage 2 Recommendation:
2-step colder spark plugs gapped to 0.22 are recommended for Stage 2 applications.

🛠 Fitment & Installation

• Designed specifically for BMW M5 & M8 (F90/F91/F92/F93) platforms

• Plug-and-play install with no cutting or permanent modifications

• Professional or experienced DIY installation recommended

• Includes all required hardware for fitment

🔥 Ceramic Coating Option

The product images may show ceramic-coated downpipes. For added engine bay protection and reduced heat soak, please select the Ceramic Coating add-on before checkout — otherwise, the downpipes will ship with a polished finish.