Project Gamma S63TU Downpipes & Tuning Package

Bootmod3 or MHD ECU Tune – Customer Selectable

Project Gamma S63TU downpipes are now available as a complete downpipe and ECU tuning package, allowing customers to choose their preferred tuning platform — Bootmod3 or MHD — at checkout. This bundle is the ideal solution for running high-flow downpipes smoothly while unlocking major performance gains at a reduced package cost.

When paired with professional ECU tuning, Project Gamma downpipes significantly improve exhaust flow, turbo response, and overall drivability, making this one of the most effective upgrades available for the BMW S63TU engine platform.

Tuning Information

• Available tuning options:

  • Bootmod3

  • MHD

• An ENET cable and compatible laptop or mobile device are required to flash the vehicle

• Please email us with any questions regarding tuning compatibility or ENET cable requirements

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

Project Gamma S63TU Downpipes

Engineered specifically for the BMW S63TU engine, Project Gamma downpipes feature a full 3-inch diameter design with a precision CNC-machined stainless steel v-band to pipe transition for perfect fitment and maximum exhaust flow.

Unlike competitors that neck down near the turbo outlets, our downpipes maintain a true full 3D design all the way through the final inches, resulting in superior airflow and measurable performance improvements. When tuned, gains of up to 50 horsepower and 60 lb-ft of torque can be achieved.

• Full 3” high-flow construction

• Handcrafted from 304 stainless steel

• Extreme rust and heat resistance

• Optimized for tuned and high-performance setups

Ceramic Coating Notice

The product images shown feature ceramic-coated downpipes. To help protect your engine bay from potential heat damage, please select our Ceramic Coating add-on before checkout. Otherwise, the downpipes will be delivered in a polished finish.