I have installed a TORqKIT for over 18 months now on my 79series Landcruiser 4.5lt Petrol Table top. After installing the kit there was two things that were immediate, I found a power increase and torque increase. High Way hills that I used to need to pull back from 5th to 3rd I now with TORqKIT I can hold 5th on the same hills and only drop 12 to 15kms. During this time I have saved fuel bills by 20 to 25% at least. The increased torque is noticeable and is now recorded when my Landcruiser was measured at Kurri Kurri TAFE. The electrical's are protected by a fuse so that there is never any risk of over loading. The end result is that I am saving $$$ on fuel costs, my engine is running cleaner and cooler, with long term use the results will be longer life for my engine and money staying in my pocket. I am so happy with the TORqKIT I wish that had stop procrastinating and installed one sooner.