Your 2001 - 2004 GM Duramax LB7 is a classic truck, but as it ages, fuel leaks can be a real headache when you're trying to boost horsepower. That's why we've partnered with Fleecer Performance to offer you this set of 8 brand - new injector lines. With part number FPE - 34611, these lines ensure that the fuel you're pumping into your engine actually reaches its destination! They replace those leak - prone old OEM lines. Each set features high - quality lines, machined 4140 injector swivel nuts, and corrosion - resistant materials.

Using this injection line set is easy. First, make sure your engine is turned off and cooled down. Remove the old, leak - prone OEM lines carefully. Then, install the new lines one by one, ensuring a tight fit with the machined 4140 injector swivel nuts. When you're done, start your engine and check for any signs of fuel leaks. As for maintenance, keep an eye on the lines for any signs of corrosion. Since they're corrosion - resistant, they should last a long time, but it's always a good idea to inspect them regularly, especially if you drive in harsh conditions. If you notice any issues, replace the lines promptly to avoid engine problems.