SKU #: PSI-12100 MPN #: 12100

PSI Power Performance Tuner 98-05 Cummins ISC 8.3L/9.0L Medium Duty Engine

Name: PSI Power Performance Tuner 98-05 Cummins ISC 8.3L/9.0L Medium Duty Engine
Brand: PSI Power
Price: 795.0 USD
Availability: InStock

$795.00

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PSI Power Performance Tuner 98-05 8.3L/9.0L Cummins Engine

Description

Are you looking to get more pulling power and improved fuel efficiency from your medium-duty Cummins? The PSI Power Performance Module is designed for 8.3L and 9.0L Cummins engines equipped with the CAPS fuel system; this plug-and-play module optimizes engine fueling to deliver up to 30% more horsepower and torque, along with claimed fuel savings of 10–20%. Whether you're driving a motorhome, hauling heavy loads, or tackling demanding grades, the added power and improved throttle response can make a noticeable difference in how your Cummins performs. A three-position switch lets you select the power level that best suits your driving conditions, giving you the flexibility to run stock power or step up performance when you need it. Unlike traditional programmers that reflash the factory ECM, the PSI Power 12100 works inline with the factory engine signals to optimize fuel delivery without changing the ECM's stored programming. Its plug-and-play connections allow installation without cutting or splicing factory wiring, and the included three-position switch makes it easy to adjust power settings. The module offers stock, approximately 15%, and up to 30% increased power levels, with performance adjustments designed to improve both pulling capability and fuel efficiency.

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Are you looking to get more pulling power and improved fuel efficiency from your medium-duty Cummins? The PSI Power Performance Module is designed for 8.3L and 9.0L Cummins engines equipped with the CAPS fuel system; this plug-and-play module optimizes engine fueling to deliver up to 30% more horsepower and torque, along with claimed fuel savings of 10–20%. Whether you're driving a motorhome, hauling heavy loads, or tackling demanding grades, the added power and improved throttle response can make a noticeable difference in how your Cummins performs. A three-position switch lets you select the power level that best suits your driving conditions, giving you the flexibility to run stock power or step up performance when you need it.

Unlike traditional programmers that reflash the factory ECM, the PSI Power 12100 works inline with the factory engine signals to optimize fuel delivery without changing the ECM's stored programming. Its plug-and-play connections allow installation without cutting or splicing factory wiring, and the included three-position switch makes it easy to adjust power settings. The module offers stock, approximately 15%, and up to 30% increased power levels, with performance adjustments designed to improve both pulling capability and fuel efficiency.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA

Vehicle Fitment

1998-2005 Cummins 8.3L/9.0L Medium Duty Engine With CAPS Fuel System

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

Increased Horsepower & Torque
Enhanced Fuel Efficiency
Plug-and-Play Installation
Warranty-Safe Performance: Designed to work seamlessly with factory settings, our modules do not affect emissions or leave a trace on your ECM. Maintain full factory warranty protection while enjoying improved performance and durability.
Adjustable Power Settings: Choose your preferred power level with the included 3-position mechanical switch. Customize your performance on the go for any task or condition.

About PSI Power

PSI Power Products develop performance electronics and engine management solutions for diesel trucks. Their Truck Edition lineup includes performance modules and tuners engineered for a wide range of work trucks, vocational vehicles, RVs, and Class 8 semi-trucks, helping operators improve horsepower, torque, throttle response, and overall engine efficiency. With application-specific solutions for popular diesel platforms from manufacturers such as Cummins, Caterpillar, Detroit Diesel, International, and other major engine brands, PSI Power products are designed to deliver practical performance improvements for vehicles that spend their time hauling, towing, and working in demanding conditions. Featuring straightforward plug-and-play installation and products engineered, tested, and built in the USA, PSI Power provides dependable performance upgrades for commercial fleets, owner-operators, and diesel enthusiasts looking to get more capability and efficiency from their heavy-duty equipment.