Unlocking More Power From Your 2015 Ford F350 Diesel Truck

Improving the Power and Efficiency of Your 2015 F350

Owners of the 2015 Ford F350 pickup know it's built Ford tough. With its powerful 6.7L Power Stroke turbo diesel V8 putting out an impressive 440 horsepower and 860 ft-lbs of torque, it has plenty of capability for towing and hauling heavy loads. However, some owners want to push their trucks even further and unlock more power and efficiency from their F350's engine.

Emissions Regulations and Diesel Delete Kits

In order to meet emissions regulations, diesel trucks like the 2015 F350 utilize exhaust gas recirculation (EGR) and diesel particulate filters (DPF). While important for reducing emissions, these systems can sap power, efficiency, and reliability if not properly maintained.

This has led many diesel enthusiasts to install "delete kits" on their trucks. These kits block or remove the EGR and DPF components, preventing exhaust from re-entering the engine. This reduces backpressure and allows more airflow, boosting power and economy. However, deleting these emissions systems is illegal for on-road use.

Improving the 6.7L Power Stroke Engine

The 6.7L Power Stroke V8 utilizes a variable geometry turbocharger (VGT), high pressure fuel pump, and multi-stage EGR cooler. While complex, these systems work together to produce optimal torque while meeting emissions standards. Deleting them can offer improvements but also has downsides:

• Removing the EGR increases exhaust temperatures, which may require additional supporting mods
• Deleting the DPF eliminates a restriction point but can raise smoke levels
• Aftertreatment sensors will cause engine codes without recalibration

Furthermore, the 2015 F350's diesel oxidation catalyst converts some pollutants into less harmful compounds even without the DPF. So deleting it diminishes environmental benefit.

Popular Power Upgrades for the 2015 F350 6.7L

Rather than fully removing emissions components, many F350 owners opt for diesel performance tuning upgrades to unlock power while retaining driveability:

• ECU tuners recalibrate the engine computer for more boost, timing advance, and fueling
• Exhaust upgrades reduce backpressure for better turbo response and airflow
• Upgraded turbochargers increase boost levels for big power gains

Performance companies offer upgrade paths to add 100 hp or more to the stock F350 without the downsides of a full delete kit. Andoptimized driving habits can also yield significant fuel economy gains.

Customizing Your 2015 Ford Super Duty

While emissions modifications are one path, many 2015 F350 owners invest just as much or more into styling, lift kits, wheels and tires, auxiliary lighting, and other upgrades to improve their truck's capability and appearance.

Body Lifts vs Suspension Lifts

A body lift is the easiest way to get a little more ground clearance by spacing up the body from the frame. For more ride height, a suspension lift replaces front coils and rear leaf springs with taller units along with extended shocks for maximal articulation off-road.

Wheel and Tire Upgrades

Upfitting more aggressive off-road tires or wider wheels with lower profile tires are common upgrades for 2015 F350 trucks. Just be sure to re-gear the axles if going more than 2 inches larger in diameter to avoid drivetrain strain.

Additional F350 Accessories

The list of customizations is nearly endless for the 2015 F350 pickup:

• Bed racks, lights, liners, covers
• Performance intakes, exhausts
• Auxiliary switch panels
• Winches, brush guards, rock sliders
• Tuners and monitoring gauges

With some many options, it's easier to ask what can't be added to these rugged Ford trucks!

FAQs

Is a diesel delete kit legal?

No, removing factory emissions equipment like the DPF and EGR on a road-going vehicle is a violation of the Clean Air Act. Delete kits can only be legally used on race vehicles or off-road trucks not registered for street use.

What are the benefits of an EGR delete?

Deleting the EGR prevents exhaust from re-entering the engine, reducing carbon buildup in intake components. This allows more airflow for better combustion. However, it increases exhaust heat levels and emissions.

How much power can a tuner add?

Diesel tuners for the 6.7L Power Stroke engine can reliably add 100-150 horsepower depending on fueling upgrades supporting the increased boost and timing advance changes.

What lift kit height should I get?

It depends on your wheel/tire size and planned off-road usage. A 4-inch lift allows running 35-inch tires without rubbing but has more drivetrain angle downsides. 2-3 inches is optimal for most 2015 F350 trucks seeing dual use.