Alpina B8 / BMW G16 M850i Valved Sport Exhaust System

VALVED SPORT CATBACK SYSTEM / T304 Stainless / Reuse OEM

$5,727.00

1/17

Alpina B8 / BMW G16 M850i Valved Sport Exhaust System

SKU: BMW.G16.M850i.VSES.BR

Alpina B8 / BMW G16 M850i Valved Sport Exhaust System

ship Free Shipping to the 48 Contiguous States

$5,727.00

BMW G16 M850i Gran Coupe / Alpina B8 Valved Exhaust System

Full T304 Stainless Steel System with OEM Valve Integration

Overview

The BMW G16 M850i Gran Coupe and Alpina B8 deliver incredible performance and refinement—but their stock exhaust note leaves room for excitement.
Our Valvetronic Designs Valved Exhaust System is engineered specifically for this platform to enhance presence, sharpen tone, and add measurable performance gains.

This full system bolts directly to the OEM downpipes or can be paired with a free-flow front race pipe setup. Valve operation integrates seamlessly with the factory Sport and Sport+ driving modes, allowing instant sound control from the driver’s seat. As a direct OEM replacement, it installs with no modifications and is guaranteed to deliver a richer, more engaging soundtrack through the entire rev range.

Why It Works

Bespoke Platform Design: Engineered specifically for the G16 M850i and Alpina B8 for perfect fitment and optimized acoustics.
Full Mandrel-Bent Construction: Maximizes exhaust flow for improved throttle response and power.
OEM Valve Integration: Retains factory valve functionality for quiet cruising or aggressive sound on demand.

Sound & Control

Valves Closed: Maintains refined, comfortable tone for daily driving.
Valves Open: Delivers a deeper, more aggressive note with added volume and character.
OEM Integration: Controlled via Sport and Sport+ modes—no extra remotes or wiring required.

Construction & Options

Material: T304 stainless steel for durability and corrosion resistance.
Weight Savings: 15.7 lb lighter than the factory exhaust.
Craftsmanship: Precision TIG welds for strength and a high-end finish.
Tips: Designed to reuse OEM tip outlets for a factory-fit appearance.

Fitment

2018–2024 BMW G16 M850i Gran Coupe
2018–2024 Alpina B8

Installation Notes

Direct replacement for the OEM exhaust system—no cutting or welding required.

What’s Included

Full T304 stainless steel valved exhaust system
Integrated OEM-style electronic valves
All necessary hardware and clamps

Specifications

Tubing: Full mandrel-bent T304 stainless steel
Valves: OEM-style electronic valves with factory integration
Weight Savings: 15.7 lb lighter than OEM
Tip Compatibility: Designed for OEM outlet reuse

PLEASE EMAIL US AT: CUSTOMERSERVICE@VALVETRONIC.COM WITH ANY QUESTIONS

Bespoke Platform Design: Engineered specifically for the G16 850i and Alpina B8 for perfect fitment and optimized acoustics, Full Mandrel-Bent Construction: Maximizes exhaust flow for improved throttle response and power, OEM Valve Integration: Retains factory valve functionality for quiet cruising or aggressive sound on demand

Brushed T304 stainless steel
Full mandrel-bent T304 stainless steel
OEM-style electronic valves with factory integration
15.7 lb lighter than OEM
Reuses OEM Exhaust Tips

Direct bolt-on installation cat-back replacement to OEM mounting points,

Warranty Coverage

All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.

Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.

Warranty Periods

304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
Tip finish is covered by a 1-year limited warranty.

Warranty Terms

Warranty coverage begins on the purchase date and applies only to the original purchaser.
This warranty is not transferable or assignable at any time.
Discoloration caused by heat, salt, brine, or other road treatments is not covered.
Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.

FULL WARRANTY POLICY CAN BE FOUND HERE

Full T304 stainless steel valved exhaust system, Integrated OEM-style electronic valves, All necessary hardware and clamps

Overall rating: 5.0 / 5 from 1 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

Elevate your BMW exhaust with the best in the industry.

"After 45+ years as a passionate car enthusiast, I’ve experienced countless aftermarket upgrades—but the Valvetronic full exhaust for my G15 M850 Coupe is in a class of its own. The craftsmanship is flawless, and installation was an absolute breeze. What truly sets Valvetronic apart is their attention to detail—they think of everything. From including an extra remote for convenience, to offering a bolt-up pipe option for future downpipe upgrades, every aspect is designed with the enthusiast in mind. Even the delivery and product presentation feel premium, like unboxing a high-end consumer electronics device. This isn’t just an exhaust—it’s a statement of quality, innovation, and performance."

— Jeremy L. (5/5)