Looking for the best throttle controller for your BMW 1-2 Series? The Stealth 4.0 DigiPedal throttle controller sharpens pedal response and reduces throttle lag.
Stealth 4.0 Digipedal + HP Tune for BMW
Not just a throttle controller. The Stealth 4.0 Digipedal removes throttle lag and can add power: typical gains are 3-5% (4 cyl 4-5 HP, 6 cyl 5-10 HP, 8 cyl 10-20 HP). It is calibrated to your vehicle model, so we need your details before we send it.
What does a throttle controller do?
Most modern cars have no throttle cable. When you press the accelerator, a sensor in the pedal sends a signal to the engine computer (ECU), and the ECU decides how far to open the throttle. To meet emissions, fuel economy and safety targets, manufacturers set the ECU to open the throttle slowly and softly. That is the delay or "lag" you feel when you press the pedal.
The Stealth 4.0 Digipedal sits between the pedal and the ECU. It reads the pedal signal and sends the ECU a sharper, more sensitive version of it. The throttle opens sooner for the same pedal movement, so the engine responds faster. On turbo cars it also helps reduce turbo lag. It does not change your ECU or engine, and it can be unplugged and removed at any time.
- Instant response: less delay between your foot and the engine.
- Pick how it feels: Eco for city driving, Standard (factory), Sport and Sport+ for performance driving.
- Extra modes: anti-abuse, anti-theft (disables the pedal) and a voltage meter.
- HP Tune: with the optional tuning wire, the controller also adds more HP (typically 3-5%) by increasing the spark ignition timing advance.
How it is installed
Plug and play, with no cutting or splicing. With the engine off for at least 10 minutes, unplug the accelerator pedal connector, plug our model-specific harness in between the pedal and the car's plug, then place the control box out of sight and mount the display where you can see it. Instructions are included.
Pictures below: the install diagram, the model-specific harness, the OBD-II power connection and the controller fitted in cars.
Tell us your car when you order
Please message us your year, build date and model (and engine if you know it) when you order. We match the controller and model-specific harness to your car and confirm it before it is sent.
Supported BMW models (1-2 Series)
| Model | Years | Engine |
|---|---|---|
| 1 serie | E87 - 2004 - 2007 | 116i 115Hp; 118D 122Hp; 118i 129Hp; 120D 163Hp; 120i 150Hp; 130i 265Hp; 135i 306Hp |
| 1 serie | E87 - 2007 - 2011 | 116D 115Hp; 116i 122Hp; 118D 136Hp; 118D 143Hp; 118i 143Hp; 120D 163Hp; 120D 177Hp; 120i 170Hp; 123D 204Hp; 125i 218Hp; 130i 265Hp; 135i - N54 306Hp; 135i - N55 - twinscroll 306Hp; 1M - 3.0i Bi-turbo 340Hp |
| 1 serie | F20 - 2011 - 2015 | 114D 95Hp (1598cc); 114i 102Hp; 116D 116Hp (1598cc); 116D 116Hp (1995cc); 116i 136Hp; 118D 136Hp; 118D 143Hp; 118i (1600cc) 170Hp; 120D 163Hp; 120D 184Hp; 120D 200Hp; 125D 211Hp (1995cc); 125D 218Hp (1995cc); 125i 218Hp; 125i MMP 238Hp; M 135i 320Hp |
| 1 serie | F20 - 2015 - 2018 | 114D 95Hp (1496cc); 116D 116Hp (1496cc); 116i 109Hp (1499cc); 118D 150Hp; 118i 136Hp (1499cc); 118i 136Hp (1598cc); 120D 163Hp; 120D 190Hp; 120i 177Hp (1598cc); 125D 211Hp (1995cc); 125D 224Hp (1995cc); 125i 218Hp; 125i 224Hp; 135i 326Hp; M140i 340Hp |
| 1 serie | F40 - 2019 -> | 116D (1.5D) 116Hp; 116i (1.5T) 109Hp; 118D (2.0D) 150Hp; 118i (1.5T) 140Hp; 120D (2.0D) 163Hp; 120D (2.0D) 190Hp; 120i (1.6T) 177Hp; 120i (2.0T) 184Hp; 120i (2.0T) 184Hp (B48B20B); 125i (2.0T) 218Hp; 128ti 265Hp; M135i 306Hp |
| 1 Series F70 * | 2024 -> | B48/B37 - 120 / M135 xDrive |
| 2 serie | F2x - 2013 - 2020 | 218d 136Hp; 218d 143Hp; 218d 150Hp; 218i 136Hp; 220d 163Hp; 220d 184Hp; 220d 190Hp; 220d 200Hp; 220i 184Hp; 225d 218Hp; 225d 224Hp; 228i 245Hp; 230i 252Hp; M235i 326Hp; M240i 340Hp |
| 2 serie | G42 - 2021 -> | 218i 156Hp; 220d 190Hp; 220i 184Hp; M240i xDrive 374Hp |
| 2 serie Active Tourer | 2014 - 2017 | 214d (1496cc) 95Hp; 216d (1496cc) 116Hp; 216i (1499cc) 102Hp; 218d (1995cc) 136Hp; 218d (1995cc) 150Hp; 218i (1499cc) 136Hp; 220d (1995cc) 190Hp; 220i 192Hp; 225d (1995cc) 224Hp; 225i (1998cc) 231Hp; 225xe (1499cc) 225Hp Hybrid |
| 2 serie Active Tourer | 2018 - 2021 | 215i (1499cc) 110Hp; 216d (1496cc) 120Hp; 218d (1995cc) 150Hp; 218d xDrive (1995cc) 150Hp; 218i (1499cc) 140Hp; 220d (1995cc) 190Hp; 220d xDrive (1995cc) 190Hp; 220i (1998cc) 190Hp; 225i xDrive (1998cc) 230Hp; 225xe Hybrid (1499cc) 225Hp |
| 2 serie Active Tourer | 2022 -> | 218d 150Hp; 218i 136Hp; 220i 170Hp; 223i 218Hp |
| 2 Series Gran Coupe F44 * | 2020 -> | B38/B48/B47 - 218i-M235i, 218d |
* Not yet on the official Vaitrix list. Please message us to confirm your car before ordering.
Don't see your BMW? Message us. The supported list grows as Vaitrix releases new calibrations.
Tuning wire (optional)
The tuning wire adds more HP by increasing the spark ignition timing advance. It runs from the controller box into the engine bay and plugs into a model-specific harness (instructions included). The wire is made to order, so allow up to an extra week. Petrol engines only: diesel and electric vehicles have no spark ignition, so the tuning wire does not apply to them.
Features
- Removes throttle lag; on turbo cars it reduces turbo lag
- Eco, Standard, Sport and Sport+ modes, plus anti-abuse and immobiliser modes
- Voltage meter and low-voltage warning
- Plug and play, non-destructive install
Turbo and boosted cars
For boosted cars we also sell the Digitorque controller and the Intellipower.AI controller. They are available in other listings, so message us if you are not sure which suits your car.
Warranty
12 months on parts.
Need it fitted?
Message us for a quote.
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