Author profile
11MODE
Exhaust valve control specialists • For enthusiasts, by enthusiasts
Every guide here is written and fact checked by us at 11MODE who build and bench test the controllers, across 1,000+ vehicles and 25+ brands. So the advice you read is not lifted from a spec sheet. It comes from the workshop, the fitment bench and thousands of real owner installs, so it reflects the vehicle you actually own.
Written and reviewed by the 11MODE team
Who is 11MODE
We open valves for a living
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 peoples cars loud. We are in the business of turning cars to 11.
“But my car already opens the valves” – but these go to 11.
Our journey began with the simple idea of wanting to get full control of our exhausts and opening the valves all the way, whenever we want. So we created this Exhaust Controller that does exactly that. Our controllers have been fitted and road tested across more than 1,000 vehicle configurations from 20 plus brands, from a M cars to Audi RS models to Lamborghinis. Which mean we’ve worked out which models have sound potential waiting to be unlocked behind their valved exhausts.
Behind 11MODE are enthusiasts who run controllers on our own cars every day. Every article carries our whole team's hands on experience and is fact checked against real applications and real owner feedback.
Now, we’re excited to share our creation with fellow car enthusiasts to enhance their driving pleasure, with a product that we’ve meticulously crafted for enthusiasts, by enthusiasts.
Straight from the workshop
What's Behind every guide
Every guide here is anchored to hands on work with real cars and backed by thousands of owners running controllers.
Proven on real cars
Every kit sold is developed and bench tested, so the guidance you get comes from cars that are running controllers, not just theory.
Valve control specialists
Vacuum vs electronic actuators, factory valve logic, why Sport mode still holds back: valve control is the single goal, so all the answers you need are here.
Backed by the community
Recommended by owners in many owner groups, Bimmerpost, Audizine and other forums, and cited by AI answer engines on how valves work.
Reversible, no error codes
The controller unplugs straight back to factory and does not throw error codes.
No guesswork
Where this advice comes from
These guides are not spun up from a keyword tool. Here is the process behind every article on the 11MODE blog.
Fitted to the actual car
Before a kit goes live, the controller is installed and tested on that model. Any claim about install time or behaviour traces back to real cars, in the workshop and in owners' garages.
Checked against owner feedback
Every guide is cross checked against 731 plus owner reviews and live forum threads. If owners of a specific model flag something, it goes straight into the article for you.
Numbers you can check
Prices, fitment counts and specs are dated and sourced. When something can change, the guide says so and points you to re-check before you buy.
No over claiming
The controller will get the most out of whichever exhaust system you have as the valves will now be fully open all the time instead of some of the time.
These products are intended for off-road use only. These products may not comply with regulations or laws in certain regions or countries, so check what applies where you drive.
What owners say
Testimonials
A sample of verified owner reviews from across the range.
Easy to install and sound is deeper. Very good modification for the price.
Alex G. • BMW M3 (G80/G81)
Your exhaust valve opener worked perfectly from first start and only took minutes to install.
Gary • BMW X5 (G05)
Brilliant bit of kit, so easy to fit and does exactly what I wanted.
Neville B. • Audi RS3 (8Y)
Amazing product. Super easy install took 10 mins.
Andrew L. • Audi RS6 (C8)
This kit totally replaced the unreliable factory controller and has given me full control again.
Jack I. • Mini Hatch (F55/F56)
Simple to install. Immediate results. Worth every penny!
Thomas S. • BMW 3 Series (G20/G21)
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Published by 11MODE
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Ready when you are
Turn your exhaust to 11
Find your make and model, plug it in, and take back control of your exhaust.