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My Vauxhall vivaro 2.5 had always been low on power at low rpm so I thought I'd try a tuning box not expecting much as I never thought they worked that well. So the box turned up it took about 5 mins to fit so easy and simple. I took the van out for a drive it felt good but I felt I need to change the map I moved the map up one more which was very simple and what a difference! My van pulls any gear low down rpm with out any trouble and the fuel economy is about twice as good ! Cant believe how well the product work would definitely recommend. Thank you
Verified purchase: Yes | Condition: New
This box definitely works, the difference in torque is unbelievable. I haven’t really noticed any difference in fuel economy but that is more down to being heavy on the right foot. Great product
Verified purchase: Yes | Condition: New
It's the 2nd one I have got for 2 separate car and I will come buying one for all my cars they a very good
Verified purchase: Yes | Condition: New
Noticed difference straight away and saving fuel thanks
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New