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 13 reviews
Martin Gledstone
Booster plug smoothed out my throttle lovely

Booster plug smoothed out my throttle lovely
Thanks you very much

David Tucker
Bonneville booster plug

Intermittent low speed throttle jerkiness now eliminated and acceleration is crisper - a definite improvement.

alan sanders
Booster plug

Could not believe the difference this plug makes, usually 2 gear through villages but now 4th and as smooth as butter. Best £130 spend on bike. Many thanks.


Better smoothnes, extra power!

Jamie Adams
Fuel booster plug

After fitting the fuel booster plug onto my 2015 air cooled Scrambler, the difference in low rpm and throttle response together with a slightly richer mixture has made the bike near perfect with the Arrow exhaust. The bike now runs without popping as it should, and pulls hard through the rev range. Money well spent.