Take full control of your exhaust with the MAD Plug-and-Play Valve Controller. It overrides the factory flap logic — which usually prioritises noise regulation — so you can tailor the exhaust note to your mood, then switch back to factory settings with a single click.

The V2 software adds four valve positions for even more control.

Features

• V2 software: on G-body M cars the middle button is user-selectable across 0% (closed), 25%, 50% and 75% — hold 3–5 seconds to set, press any other button to save. Non-M G-body cars are limited to 50% mode; pre-2019 F-body cars support only 100% and stock.
• 100% plug-and-play using OEM connectors that draw power from the factory harness — no tapping into power or ground wires.
• IP68 waterproof, safe for trunk or under-vehicle mounting, with a military-spec fireproof wire harness.
• Memory function retains your settings after a restart.
• Includes two premium remotes, HomeLink integration, and a dummy plug for single-valve vehicles.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.