Fuel booster plug water cooled Triumph twins –Speed Twin/Bobber/T120/T100/Thruxton/Thruxton R/Street Twin/Street Cup/Street Scrambler/Speedmaster


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 900cc -Street twin/Street Cup/Street Scrambler/T100

and 1200cc- Speedmaster/Bobber/T120/Thruxton/Thruxton R/ Speed Twin

Just email us your model/yr 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 ( PLUG AND PLAY ) no wire cutting required. It has a no quibble money back satisfaction 60 return and a lifetime product limited warranty

Important – 2021 Euro 5 ONLY Triumph models CAN NOT fit any form of tuner, including BoosterPlug & Power Commander.  This is due to the ECU having anti-tamper software.  Doing so will cause the MIL light to come on.


Customer Reviews

Based on 110 reviews
andrew Shaw

having read all the reviews I thought id give it a go and what a difference it makes. easy to fit with the TEC included instructions. it sorts out the low speed and low revs hesitation and occasional stalling and transforms the bike into what it should be. its a shame I had to spend £120 to sort out Euro4 but it was well worth it. They do say that at higher revs the power booster makes little difference and I agree but low down and starting it does exactly what they claim. if you only buy one item for the T120 (and others??) this should be it. As for TEC, this isn't my first purchase and it wont be the last. Thank you team TEC

Steven Harris
It works

Great service from tec and it works

Robert Williams
Fuel booster plug fitted

I purchased this booster plug to try and smooth out the throttle response on my T100 which seem to act like an on/off switch. I can only say how impressed I am with the results exceeding all expectations making the bike run much better at low speeds and right though the rev range.

Peter Curry
How the bike should be

Had a ‘20 plate Speed Twin from new and after 18 months decided to try out the booster plug as the bike is great but is jerky at low speeds when you’re on and off the throttle. I’ve put up with this and feathered the clutch to dampen the torque put to the rear wheel but decided to try and rectify this based on reviews I’ve seen. All I can say is it does exactly what it is supposed to and I’m sure Triumph would admit this is how this engine should run and how they would have designed it if it wasn’t for the emission standards. With a big capacity twin you really feel the effect of the lean engine applying braking torque then drive especially in corners where it can unsettle the bike but this gets rid of it. It also pulls smoother. The bike has been transformed and I’d recommend anyone with a Speed Twin who can fit this plug to do so and don’t question the cost(reasonable for the technology). It also keeps the ‘popping’ exhaust when you shut off so it still sounds great. Easy to fit buy loosening the tank bolt and putting a rag underneath but had to use a screwdriver to press the release on the existing connector as my fingers are too big to grab and pull out. Other than that it took 5 mins to zip tie the sensor under the tank(in situ) so the cold air hits it at the front of the bike as recommended.

Decent product

I fitted this to a 2018 Street Scrambler recently bought from a previous owner who had fitted a TEC camshaft and de-catted the bike. It had a tendency to snatch a bit here and there in the rev range, especially when trickling through town. It also stalled occasionally when hot, which seemed a bit odd. The plug was easy to fit but ignore the instructions from the manufacturer and check the photo provided by TEC instead. It has evened out and smoothed the throttle response and stopped the stalling, so I'm happy with that. Am I glad I bought it? Yes. Would I recommend it? Yes. Happy customer :-)