Review on ExcelFu 07 5 12 Cummins 04 5 10 Duramax by Patrick Mccall

Installing this product was key to boosting the fuel efficiency in my automotive vehicle .Through trial and error, I found that this was exactly what my truck needed to get me those extra miles per gallon. The installation process was simple and quick. The only downside is that it took some time to see noticeable results. Overall, I highly recommend this product to anyone looking to improve the fuel system in their truck..