Diesel Performance Products FAQ

Does the installation of performance parts improve fuel economy?

Sometimes! Diesel engine applications normally maintain the same MPG, yet will have more power.

Is the Installation of performance products emissions legal?

All the performance products Oregon Fuel Injection installs are emissions compliant. Most of these will have a CARB EO number in the description. There are many products on the market that are not emissions legal, if it is not legal we do not sell or install it.
Some performance products we sell on our website can not be sold into California. If you are interested in a particular product, we would be happy to let you know if it is emissions legal before you purchase it. We do not do emission system deletes.

Can I just add a tuner to get more power?

Yes, performance tuners basically add more fuel and change timing. Most engines need improved airflow to both intake and exhaust systems to work with the additional fuel. Otherwise, you will exceed maximum recommended exhaust gas temperature (EGT) and shorten the life of your engine.

Does installation of a performance product void my warranty?

Installation of a performance product in and of itself does not void the warranty. However, while we guaranty our workmanship, most performance part manufactures will not cover failures on modified vehicles, if that modification may have contributed to the part failure. In other words, if you want to play you will need to pay.

Will a bigger turbo perform better?

Not necessarily. When sizing turbos to specific applications, several variables need to be taken into consideration. The most important of these are horsepower goal, operating RPM range, intended use of vehicle, and driving style. Other considerations also come into play, but deciding on these factors will allow us to help you select a turbo.

Do performance injectors work?

Yes! And when properly sized to your application they will add power and may actually increase fuel economy! However, improperly sized (too large) injectors can make a truck extremely smokey, cause slow turbo spooling, increase pyrometer temps to an unsafe level, and damage your engine. We would be happy to help you select the right injectors for your application!

Are performance injectors safe for my engine?

There isn’t a simple answer to this question. Adding fuel to an engine in any manner can shorten the life of the engine if the proper precautions are not taken. To make it as simple as possible, we can break the injectors down into two categories- OE manufacturer injectors and extrude honed/modified injectors. OE manufacturer injectors are injectors from the same type of engine that has a higher horsepower rating. These injectors are generally limited to about a 50-60 HP increase. An example would be Cummins ISB 275 injectors in the 24 Valve Dodge Cummins engine. These provide about a 40 HP bump, and are the same quality as OEM injectors. While relatively safe and effective, pyrometer temps should be monitored to ensure safe operation. Any modified or “race” injectors are a use at your own risk type proposition. Good quality injectors used in conjunction with the appropriate supporting modifications can be very reliable and reasonably safe for your engine. Poor quality modified injectors, especially common rail injectors, can cause many problems and are much more likely to damage your engine.

Is tuning safe for my DPF?

It can be! High quality tuning for DPF equipped vehicles can add a lot of horsepower, improve throttle response, help increase fuel economy, and in some cases extend mileage between regeneration events.

Do I need to upgrade my transmission?

It depends. As a general rule of thumb, a stock transmission in good operating condition should be able to handle an additional 80-120 HP during normal driving. If towing, 50-75 HP is about the safe limit in most cases. Later vehicles with electronically controlled transmissions benefit greatly from transmission tuning, which can raise line pressure and change shift strategy to help protect the transmission. Earlier vehicles do benefit from upgrades such as torque converters and valve bodies to help hold the power. If your transmission is already in poor condition, adding extra power will only make it fail sooner. It is best to plan on upgrading the transmission at some point in the life of the vehicle if you make any kind of performance modifications.