I purchased my Tunit Standard years ago for my D22 Navara. It's 2017 and still working from the day i got it. Without it my fuel bill over the years would of...well..let's not go there, but thanks to the fuel saving capabilities from the little black box i can thankfully say i can buy a beer or two.

I liked Tunit because it could be removed due to my new Mercedes being on lease, I have used Tunit before but the performance was a vast improvement on my last experience

Absoloutly delighted and it is the 3rd Tunit I have had. A brilliant piece of kit giving 34 more BHP according to the dyno