AND THE AFTERMARKET PARTS THAT MAKE IT EVEN BETTER
It’s hard to say where GM’s heavy-duty pickups would be today if the Duramax had never been born. Back…
Performance tuning is nothing new to the Duramax market, companies like Duramaxtuner of Marengo, Illinois, have been using EFILive software to create custom tuning for the 2001+ GM…
