ABOUT THE PRODUCT
Upgrade your BMW S58 with Project Gamma Stainless Steel Downpipes, designed for maximum airflow, faster turbo response, improved exhaust sound, and increased performance on tuned BMW M2, M3, and M4 models.
The factory downpipes on the BMW S58 engine are restrictive, especially once the vehicle is tuned or upgraded with additional performance modifications. Project Gamma downpipes help reduce exhaust backpressure, allowing the twin turbos to spool faster and breathe more efficiently. The result is sharper throttle response, stronger acceleration, and a more aggressive exhaust tone.
Built from high-quality 304 stainless steel, these downpipes are engineered for strength, durability, and extreme resistance against rust and heat. Each set features a precision-machined stainless steel V-band transition for proper fitment and secure connection to the factory turbochargers.
Unlike many downpipes that reduce diameter near the turbo side, Project Gamma downpipes are designed to maintain strong airflow through the pipe for improved exhaust flow and better overall performance. This makes them one of the best supporting modifications for tuned BMW G80 M3, G82 M4, G83 M4 Convertible, and G87 M2 vehicles.
Performance Benefits:
- Improved exhaust flow
- Reduced turbo backpressure
- Faster turbo spool
- Better throttle response
- Stronger mid-range and top-end power
- More aggressive exhaust sound
- Helps reduce turbo lag
- Great upgrade for tuned S58 vehicles
- Ideal supporting modification for Stage 1, Stage 2, Bootmod3, MHD, and custom tuning setups
Key Features:
- Designed for BMW S58 twin-turbo engines
- Fits BMW G80 M3, G82 M4, G83 M4 Convertible, and G87 M2
- Made from 304 stainless steel
- Precision CNC-machined V-band transition
- Designed for improved airflow and exhaust efficiency
- Helps increase horsepower and torque when paired with proper tuning
- Uses factory-style fitment points
- Compatible with factory heat shielding
- Available in polished stainless steel or optional ceramic coating
- Handcrafted for strength, durability, and long-term performance
Fitment:
2021+ BMW G80 M3
2021+ BMW G80 M3 Competition
2021+ BMW G80 M3 Competition xDrive
2021+ BMW G82 M4
2021+ BMW G82 M4 Competition
2021+ BMW G82 M4 Competition xDrive
2021+ BMW G83 M4 Convertible
2023+ BMW G87 M2
Engine: BMW S58 3.0L Twin-Turbo Inline-6
Ceramic Coating Option:
The product shown in some photos may be ceramic coated. Ceramic coating helps reduce heat transfer in the engine bay and provides additional thermal protection.
Complete the Build:
- BMW G8X Downpipe + Tune Package (Bootmod3 or MHD)
- BMW G80 | G82 Catted Downpipes (200 Cell)
- BMW G80 | G82 Carbon Fiber Intakes
- BMW G80 | G82 Silicon Intakes
- BMW G80 | G82 Mid-Pipes
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.