Thanks for selling me 6 years ago two cyclones although I must admit that I was very doubtful in the beginning. I bought a Nissan Pathfinder 2006 4L V6, replacing my Nissan Sani 3L V6 being stolen here in Bloemfontein. I was forewarn of the heavy fuel consumption by most people. Unfortunately heights scare me more than speed. Travelling on a good average of around 145 km/h I just could not get a better fuel consumption of 4.8 km/L at best. Once installing your two cyclones with the same driving patterns I got easily 7 km/L and even pushing the car harder with cross winds and rain storms the fuel consumption went slightly down to 6.8 km/L. It was later very illusive for me that when driving this big machine harder the overall performance was better and so the fuel consumption too. Happy driving and now I am installing two cyclones in my BMW X5 4.4L V8  too. W.Niebuhr – Bloemfontein