The world of aftermarket diesel truck parts is vast with plenty of options to upgrade your 6.7 Cummins truck. Cummins performance parts can add power, efficiency, reliability, and even better gas mileage in some cases. The stock 6.7 Cummins engine is undoubtedly a great engine, but there’s plenty of room for improvement. Increase your truck’s horsepower, torque, and even its lifespan with 6.7 Cummins upgrades.
Check out this ProSource guide for some of the best upgrades for your 6.7 Cummins truck.
The 24 valve 6.7-liter Cummins diesel launched in the middle of 2007. It featured 650 pound-feet of torque when equipped with an automatic transmission and 610 pound-feet of torque when equipped with a manual transmission. The torque amount was purposely decreased for the manual. By 2012, trucks with an automatic transmission created 800 pound-feet of torque. The 6.7-liter Cummins also came with a DPF or diesel particulate filter in accordance with EPA standards.
The upgrades featured in this section are aimed at increasing your turbo power and cooling capacity as well as adding performance tuning.
This is one of the most important Cummins upgrades for increasing turbo airflow and compression, which results in more power and cleaner running. The stock compressor wheel is known to have flaws that create issues with surging and lag on initial acceleration. The Spoologic kit corrects boost limits by 5-7 PSI as well as improving performance at higher boost levels.
This kit upgrades your stock intercooler system with larger boost tubes, tanks, inlet and outlet, and a thicker core. By upgrading to this larger, more efficient cooling system your engine gets increased cooling capacity due to the colder, denser air entering the engine, plus an overall increase in airflow. Denser air provides more oxygen, which makes combustion more efficient. That means more power, lower exhaust gas temperatures, and overall better fuel economy.
One of the best ways to increase performance in your 6.7 Cummins is by using a tuner. This particular tuner is an in-cab tuner with a full-color, high-resolution monitor so you can easily read diagnostic codes and stats like the following:
– Barometric pressure
– Engine speed
– Engine coolant temp
– Fuel rail pressure
– Transmission temp
– Manifold air pressure
– And much more!
Max power gains for specific 6.7 Cummins trucks with this tuner are:
– 2007.5-2009 Dodge 6.7L Cummins: +125 HP +340 lb-ft
– 2010-2012 Dodge 6.7L Cummins: +95 HP +270 lb-ft
Starting in 2013, the Cummins 6.7 underwent some tweaks, which included a fully redesigned cooling system for Ram Heavy Duty trucks. The new system included dual radiators and transmission coolers, which increased heat rejection by 25 percent.
The upgrades in this section aim to increase your turbo boost system power and the cooling capacity of your 6.7 Cummins.
Turbo boost upgrades are just as important on the 2013 – Present 6.7 Cummins to get more power and performance over stock. This particular upgrade offers a big increase in size and flow over the stock system at 3.5 inches over 2.75 inches. This gives you more airflow, which means more power and better fuel economy.
This is the 2013 – Present version of the previously mentioned BanksPower intercooler upgrade kit. It works in a similar way to improve power and fuel economy for your Cummins engine. You’ll get steady power output, reduced loss of boost pressure, lower exhaust gas temperatures, and a dramatic increase in air density. Aftermarket intercoolers are one of the best upgrades you can make towards extending the life of your Cummins engine.
The mods in this section are made to fit both the previous generation of 6.7-liter Cummins and the second generation that includes engines made from 2013 until now. These upgrades are aimed at increasing efficiency and reliability in your Cummins truck.
The 6.7-liter Cummins produces higher levels of torque versus the previous 5.9-liter engine, which is why it’s important to invest in stronger head studs if you plan to increase the horsepower in your rig. The TreckTech Head Stud Kit offers the highest in class tensile strength at 240,000 PSI.
The next generation in fuel delivery removes water, particulates, and vapor from the diesel fuel, which helps increase power and performance. The AirDog system uses a pump shaft that keeps the electric motor away from the fuel. This keeps the motor from getting wet in the event of a damaged or leaking seal.
Injector and fuel rail upgrades allow your engine to flow more fuel. Better fuel flow, like better airflow, can give you more power and efficiency.
GDP Tuning GDP11002 EZ LYNK AutoAgent 2.0 Tuner
Tuners with transmission tuning can have a dramatic impact on the performance of your 6.7-liter Cummins. This tuner can be used as a diagnostic device as well as enabling you to share data logs and vehicle information from inside the cab.
Knowing which components will help you get the most from your truck can be a challenge. We hope this information makes it easier to choose the parts that will maximize performance. ProSource Diesel offers a great selection of quality Cummins parts and Cummins accessories for your Ram truck. ProSource is where repair shops shop for diesel truck parts.