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smart fortwo Sprint Booster Power Converter
451 model - Display Unit

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$299.99 Save $100.00
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Demo Unit! Save some money by purchasing our display unit. This unit is in perfect working order, but it has been used by us at our facility for demonstration.


This Sprint Booster Module is designed for the 451 model smart car (2007-2015)

With any high performance vehicle comes equally high expectations. When you put the pedal to the metal, nothing beats the roaring sound and feeling of instant acceleration. 

Sprint Booster is an entirely new product that is environmentally correct.  After installation there is absolutely no change in factory emissions and it is fully certified having obtained the demanding, German TUV approval for gas, diesel and hybrid vehicles.

Sprint Booster enhances throttle response by increasing pedal input sensitivity, delivering more impressive off-the-line performance that drivers can genuinely feel.  Installation is simple plug-n-play takes only a few minutes and rarely requires tools.  Sprint Booster delivers instant response throughout the power band, making acceleration and merging with traffic a totally new and confidence inspiring experience.  Shift points are redefined and maximized when paired with an automatic transmission.  

SPRINT BOOSTER, is a Plug-n-Play Performance Upgrade for your Model Year 2007 or later smart car. This is an upgrade that you can feel with normal everyday driving, not just on the track at redline like most other performance upgrades! 

Upgrade your smart for-two's performance in 10 minutes or less!


Sprint Booster gives you:

  • Quicker acceleration
  • Faster passing
  • Responsive uphill driving
  • Quicker gear changes
  • Easier rev matching


What is Sprint Booster?

Most cars in the 21st century have replaced the more conventional throttle cable for an ECM (Electronic Control Module) that translates how hard the pedal is pushed into electronic signals in order to provide power to the wheels. 


The ETC (Electronic Throttle Control), which is also known as Drive-By-Wire, has the unfortunate downside of delayed response and subdued acceleration, which can create problems in certain situations such as up-hill starts, quick gear changes and overtaking. 


Sprint Booster overcomes this throttle response delay for your smart car by providing crisp, on-tap acceleration for whenever the driver demands it.


At low revs, the engine responds at approximately half the time in comparison to before.

The delay time whilst accelerating in 3rd and 4th gear and the engine in the mid-range, is almost zero.

Big differences in the higher rev range.

Improved response for down shifts and safer overtaking.

Overall safety and more fun on the road!

Sprint-Booster is a device that improves acceleration by continuously measuring and converting the digital signal provided by the ETC (Electronic Throttle Control) potentiometer, and providing the ECM (Electronic Control Module) with a new, faster and more response signal. 

The design of Sprint Booster allows for easy installation in all models, without the need to cut any wires or intervene in the automobile’s electronics (it does not affect other systems such as electronic injection, ABS, etc.).

Installation is SIMPLE*:

1. Loosen the accelerator pedal module from the floorboard.

2. Unplug the harness from the accelerator module.

3. Plug in the Sprint Booster module inline with the harness and accelerator module.

4. Re-install the accelerator module.

5. Mount the optional control module in a place that is convenient for you.

This is a close out item and all sales are final! No returns.

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