air dam and vortec generators

[green swift]

Hi all, I just finished my air dam and installing the VG's . I am going to start testing on my new tank of gas. My present mileage has gone up to 826km to 31.5 L. that tank I was perfecting the mild pulse and glide and about 4% gain. The VG's are along the top off the roof and along the bottom of the car's diffuser. So far I have seen some improvement in mileage.Still testing....