ABOUT THE PRODUCT
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
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Available tuning options:
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Bootmod3
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MHD
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An ENET cable and compatible laptop or mobile device are required to flash the vehicle
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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.
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Full 3” high-flow construction
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Handcrafted from 304 stainless steel
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Extreme rust and heat resistance
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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.
When will my order ship?
If it’s in stock and the order is placed before 3pm, it ships the same day. If you ordered a product with ceramic coating, it will ship the following business day.
If the product or color spec you’re looking for is not in stock, you can join the waitlist by clicking the “email when available†button underneath the “out of stock†label. We will email you as soon as your product is available and give you an estimated back in stock time.
What if I submitted a custom order?
If you are making a custom order, email us to submit your request and we will give you an estimated delivery time based on the special manufacturing time.
What if my product arrives damaged, incorrect, or is missing parts?
If you received the incorrect product or color, missing parts, or the item is defective, email us a picture with your order number and you will receive a refund or exchange. Contact us at info@shopprojectgamma.comand we will work with you to make it right.
What if I’m not satisfied with the product?
If the product is unused and uninstalled, we can offer you a refund, exchange, or store credit. If the product was used or installed on your vehicle, we unfortunately cannot offer any refund, exchanges, or credit.
What if I installed my products and then I decide I don’t like them?
Unfortunately used or installed products will not qualify for a return or refund. If you have any questions or concerns you can email us at info@shopprojectgamma.com
A restocking fee of 20% of the original purchase price may be applied to returned products. This fee covers the costs associated with processing the return and restocking the item if applicable. Please refer to our policies page for more info regarding all exchanges and returns.
Have a question you don't see answered here? Email us at info@shopprojectgamma.com and we'll get back to you.