We're a team of car enthusiasts who turned our obsession with making our own cars loud into making it our business to make other people's cars loud. We're in the business of turning cars to 11.
11MODE Exhaust Valve Controller
Take full control of your exhaust valves
Your exhaust valves are only open some of the time, even in sports mode. 11MODE keeps them fully open whenever you want and in any mode to unlock your car's full sound potential.
Find a controller
Featured
Thousands of drivers turned it to 11
See and hear from other enthusiasts.
Why 11MODE
Your car has built in.
But your decides when they open. Even in , they don't always stay open. When your valves are closed, you're missing out on your exhaust's full sound.
keeps your valves fully open whenever you want, for
How it works
Turn your exhaust to 11 in minutes
Keep your valves 100% open, on demand.
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Plug it in
11MODE plugs straight onto your factory valve actuator. No wiring, no control box.
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Press ON ( ~ )
Your valves open and stay fully open in all drive modes.
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Press OFF ( — )
Your car takes back full control. The controller never forces the valves closed.
- Fully wireless
- No pairing needed
- 1,000+ makes and models
Install time varies by model. As with all car mods, we recommend professional installation.
Thousands of models covered
1,000+ models across 23 makes, from BMW to Porsche. Pick your car and see the exact controller that fits it.
Step-by-step guide
It's never been easier to take back control of your exhaust
Four steps and no wires to run. Install time varies by model, so check the full guide for your car.
Trusted by drivers worldwide
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Enthusiasts running 11MODE








11MODE Questions, answered
Frequently asked questions
Your car doesn't fully hold your exhaust valves open, and in some models and modes they only open partially. Sport and race modes don't keep them open across every RPM, gear and speed. 11MODE gives you full control to open your exhaust up to 11 whenever you want.
11MODE bypasses your car's exhaust valve control and holds the valves fully open on demand. Press the top (open) button and the valves stay open. Press the bottom button and control reverts to normal car operation. It changes sound only and is fully reversible.
Yes. The controller remembers its last setting, ON or OFF, and automatically restores it the next time you start the car. This applies to orders placed after June 2026.
Off hands control back to your car rather than forcing the valves shut. Forcing them closed can risk engine damage if the car needs them open under load, so the button reverts to normal operation instead. Your car then runs the valves exactly as it normally would.
If your aftermarket exhaust keeps your factory valve actuators or motors, 11MODE will still work. If your car normally has one valve motor but the aftermarket exhaust now has two, or uses different motors than stock, let us know or leave a note in your order and we'll check it for you.
11MODE fits 1,000+ petrol performance cars with factory electric exhaust valves, across 23 makes. Use Find your car to check yours in about 30 seconds.
Shipping is free anywhere in the world. There's also an express upgrade if you can't wait to turn your exhaust to 11.
We ship anywhere in the world. Some exceptions may apply, so contact us if you have trouble placing your order.














