Files.com is the best tuning server on the web, the for Hummer H1 tuning files. All Hummer tuning files are custom made and thoroughly tested on a 4x4 dynometer. The development of each Hummer tuning file is the result of perfection and dedication by our programmers. Many tuners in the world are working on mod-files.com because they are trusting our result.

Alta qualidade tuning fil Hummer H1 6.6 V8 305hp

• Custom file guarantee.
• All files are developed under 4x4 dynamometer.
• It may minimize fuel consumption.