Hummer H2 Spectacular Mileage Increase!!

[@longlivechina7538]

I was 15.5 on highway at 55 or 70 steady. Getting work done now i bet it will hit close to 16

[@brendan7632]

Would you recommend getting one of these? How much are you paying at the pump? Thanks

[@abiezz]

They’re great. If you got a short commute then it may be worth it. I love mine

[@robertlaliberte4491]

Second lung is wrong. It’s a brake booster

[@F_antomas]

Yeah, They look fantastic . I wished I could get one .