Enhance your vehicle's exhaust system with the MAD Valve Controller, the ultimate tool for customizing your exhaust sound and performance. Designed to override factory settings, this controller gives you complete control over your exhaust flap, allowing you to tailor the exhaust note to match your driving style. Unlike stock systems that adjust the exhaust flap based on driving modes and conditions—often prioritizing noise regulation. You can easily switch back to factory settings with a single click, offering unparalleled flexibility for your driving experience. Now featuring our V2 controller software update! This cutting-edge tool empowers you to fully customize your exhaust sound with 4 Valve Positions. With the new V2 update for G body M Cars, the middle button—previously fixed at 50% mode—is now user-selectable, offering even more flexibility: New User-Selectable Modes: Choose between 0% (fully closed), 25%, 50%, or 75% valve positions by holding the middle button for 3–5 seconds. Save your preference by pressing any other button. Complete Customization: Easily switch between your preferred settings, factory mode, or fully open exhaust for a driving experience tailored to your style. Non M G body Vehicles are limited to 50% only mode for the Middle button. F Body Vehicles prior to 2019 may not support the 50% mode function due to BMW programming. Only the 100% and stock functions will work on these models. 100% Plug-and-Play Installation: Installing the MAD Valve Controller is effortless, thanks to its design utilizing OEM connectors that draw power directly from the factory harness. Unlike other units, there’s no need to tap into power or ground wires, making installation seamless and risk-free. Simply unplug the current connector from the motor, insert our controller in between, and you’re good to go. Built for Performance and Durability: Built for durability and ease of use, the MAD Valve Controller is IP68 waterproof, making it safe for mounting in the trunk or underneath the vehicle. Its military-grade wire harness is equipped with a fireproof sheath, ensuring safety and reliability. The controller also features a memory function that retains your preferred settings, even after restarting the vehicle. What's in the box: The package includes two high-quality remotes for convenient control, and for added ease, you can integrate the controller with your vehicle’s HomeLink buttons. For vehicles with a single exhaust valve, a dummy plug is provided to deactivate the extra valve wire harness connector. for Dual valve vehicles the dummy plug will be used for the passenger oem harness. Key Features: New V2 Software Functionality: = Middle button now supports customizable valve positions: 0%, 25%, 50%, and 75%. (G Body M cars only) IP68 Waterproof: Safe for mounting in the trunk or under the vehicle. Military-Spec Wire Harness: Includes a fireproof sheath for superior safety and reliability. Memory Function: Retains your settings even after the vehicle is restarted. Two Premium Remotes: Control your exhaust flaps easily and conveniently. HomeLink Integration: Manage valve control seamlessly via your vehicle’s HomeLink buttons. Plug-and-Play Installation: Quick and easy connection using the excision harness. Factory Mode Override: Switch between factory settings, fully open, or custom exhaust modes. Dummy Plug: Included for vehicles with a single exhaust valve, ensuring universal compatibility. Noise Customization: Fine-tune your exhaust sound to reduce rasp or drone, achieving your desired auditory experience.