Fuel booster plug Air cooled Triumph EFI 900 Twins-SE/T100/Bonneville/Speedmaster/America/Thruxton 900/Scrambler.


Do you find your EFI bike prone to stalling at low engine speeds, lack of throttle response and a lumpy feel to your motor?

Have you fitted a free flow exhaust and worried about it running too lean?

Then this plug and play device will resolve these problems without the need to re-map you ECU.

Fits all air cooled EFI T100-Bonnevilles-Thruxton- Scrambler-America-Speedmaster and SE models. just email us your yr/model when ordering

Modern EFI bikes especially Euro 4 run very lean in open loop mode and this can cause stalling, poor running and hesitant acceleration.

This fuelling device interrupts the signal from the air temp sensor and modifies it to make the ECU add approx 4-6% more fuel during acceleration in open loop mode, it will not affect MPG as it has no effect in closed loop mode ie. cruising mode or steady running. The device has its own temp sensor and it modifies the signal to release the correct amount of fuel for the measured air temperature.

Very easy to install with correct plugs and no wire cutting required. It has a no quibble money back satisfaction 60 return and a lifetime product limited warranty


Customer Reviews

Based on 34 reviews
Fuel booster plug

I bought the fuel booster plug to fit to my air cooled Bonneville with 130,000 klm on the speedo. I fitted an efi fuel controller early on and thought it did a good job until….it didn’t. So I gave the booster plug a try. Brilliant. Easy to fit and a much better result than previous very happy and delivery to Australia was only a few days great service, thanks.

Booster Plug

Great service and delivery. Easy to fit (once original plug located !). This was under the fuse box on 2015 T100 NOT where it appears on many fitting videos that I have seen. Immediately noticed the difference in low gears.

Ian Mitchell
Booster plug

Great with Clubman 2 into 2 exhaust. No popping on deceleration and no remap needed. Simple to fit and full instructions.Different bike!

steve hopkins

Having read several reviews on Booster plugs I decided to take the plunge and fit one to my Bonnie SE. It has made a real difference at the low revs end, virtually eliminating the annoying chug at low speed or when in traffic. Better response during acceleration too, so the combined benefits do justify the money spent.
Steve H…. Cornwall

Andrew Peace

I'm always slightly sceptical when I look at plug in "performance products" but I'm actually amazed by this little plug in wonder. Smooth throttle pick up, no more jerking in low revs and starts on the button without pulling the throttle fast idle out. 5* from me for sure