Review on 🚀 Increase Fuel Efficiency and Performance with our Innovative Performance Chip/Power Programmer for Honda Civic 1.3L, 1.5L, 1.6L, 1.7L, 1.8L, 2.0L and 2.4L Engines by James Womble

as described on their website. For a week I rode the elevator as usual. I've seen their promised 5mpg average increase. I also noticed smoother acceleration. I could buy another one for my lexus rx400h, for the money it seems to do what it says on the tin. I get 415 miles per tank instead of around 380. I used to get around 29-31 mpg, I get at least 35 if not closer to 40 mpg. I drive a 2014 Honda Civic lx 4 door with 217,000 miles on it. I use Amsoil 0w20 oil with some Mystery Marvell oil and Mobil 1 oil filter, K&N reusable air filter!