Will I Get Better Gas Mileage from Performance Diesel Exhaust Systems?
If you use performance diesel exhaust systems, you will probably be able to get better gas mileage. Even though most people purchase these performance exhaust systems in order to get better horsepower, these systems can also have the dual effect of providing better gas mileage.
When you use this type of system, you can expect to save as much as 2 percent on your fuel costs. This happens because the engine works more efficiently and makes better use of the gas that it has instead of running as it has in the past.