Does Your Truck Need a 6.7 Cummins Rail Plug?
If you've been noticing your truck losing power or throwing codes under heavy load, swapping out the factory relief valve for a 6.7 cummins rail plug might be on your mind. It's one of those modifications that most diesel owners eventually hear about, usually after they've started down the path of adding a tuner or a bigger set of injectors. But even if you're running a mostly stock setup, the factory fuel system can be a bit finicky once the miles start piling up. ...