COMPATIBLE: (4.4L - N63B44)

2018 - 2025 BMW M850i xDrive G15

2021 - 2025 BMW Alpina B8 G15

Welcome to a very vital sound and performance upgrade for the Alpina B8. From factor in this car is lacks the aggressive sound and presence that many owners desire. At Valvetronic Designs we have engineered a bespoke system for this platform that takes the enjoyment level up a few notches, adds power and a very enjoyable sound experience. This full system bolts up to OEM downpipes or can be combined with a free flow front race pipe setup. Valves are controlled via the OEM sport and sport plus buttons inside the vehicle. This system is a direct replacement for the factory OEM exhaust and is guaranteed to add power and a delicious sound through the rev range. At Valvetronic Designs, we do not compromise. Neither should you.

• Constructed from T304 Stainless Steel

• Reuses OEM Tip Outlets

• Electronic OEM style exhaust valves for factory integration

• 15.7 lbs. Lighter than the factory exhaust

• Fully Mandrel bend for maximum flow

• Precision tig welds for high strength

• 100% REVERSIBLE, always able to go back to stock at any time

In-House Development at Valvetronic Designs: Pioneering Performance Exhaust Systems

At Valvetronic Designs, we take pride in crafting performance exhaust systems that combine innovation, precision, and unmatched quality. Our in-house development process is built on cutting-edge technology and rigorous testing to deliver the ultimate driving experience. From 3D scanning to sound and performance optimization, every step in our process is engineered for excellence.

1. 3D Scanning: Precision from the Start

The foundation of our exhaust system development begins with precise 3D scanning. By capturing detailed measurements of the vehicle’s underbody, we ensure our exhaust designs integrate seamlessly with the car’s architecture. This process eliminates guesswork and allows us to create systems that fit perfectly, enhancing both performance and aesthetics.

2. CAD Design: From Concept to Reality

Once we have accurate data, our team uses advanced CAD (Computer-Aided Design) software to conceptualize and develop the exhaust system. Each system is designed with both form and function in mind, ensuring a balance of aesthetics and performance. Our engineers focus on optimizing airflow, minimizing backpressure, and creating valve systems that allow the driver to control the sound and performance with the push of a button.

3. In-House Prototyping: Bringing Ideas to Life

Prototyping is where our designs take shape. Using state-of-the-art fabrication equipment, we build prototypes of our exhaust systems in-house. This hands-on approach allows us to refine each design, ensuring it meets our high standards for quality and performance. Our team meticulously inspects and tests each prototype, making adjustments as needed to guarantee that the final product is flawless.

4. Sound & Performance Testing: Tuning for Perfection

What sets Valvetronic Designs apart is our commitment to perfecting both the sound and performance of our exhaust systems. We don’t just aim for power gains; we focus on creating a signature sound that enhances the driving experience. Using our in-house testing facilities, we measure sound levels, optimize valve operation, and analyze performance data to ensure each system delivers the ideal blend of performance and acoustics.

WARRANTY: