PSI Power: 17.76% Off for America's 250th Birthday
PSI Power Products 4th of July Sale: 17.76% Off for America's 250th Birthday
To celebrate America's 250th birthday, PSI Power Products is launching a special 4th of July Sale, offering 17.76% off to retail customers in honor of this historic milestone. It's a fitting nod to 1776, and a great week to grab the PSI parts you've had your eye on.
About PSI Power
Founded in 2007 in Newburgh, Indiana, PSI Power builds plug-and-play performance modules and tuners for the vehicles and machines that do America's heavy lifting: farm and forestry equipment, light- and medium-duty pickups, and Class 8 semi-trucks. Their products are made in the USA under strict quality control, and the brand has earned a reputation among farmers, truckers, and fleet operators for performance and integrity. Their tagline says it well: "Driving Performance. Innovating Solutions."
PSI's modules connect directly to your engine's factory wiring and sensors, refining signals like fuel injection timing and boost pressure without reflashing or altering the ECM. Because nothing is permanently changed, the module can be removed in minutes, returning the vehicle to stock and keeping your factory warranty intact. The modules are also designed to work within factory safety limits for exhaust temperature, boost, and RPM, and to leave emissions systems (DPF, SCR, EGR) fully functional.
According to PSI, drivers can expect:
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Up to 30% more horsepower and stronger torque for towing, hauling, and climbing grades.
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Roughly 10 to 20% better fuel economy, depending on the application.
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Improved throttle response and reduced turbo lag.
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Selectable power modes (Economy, Tow, Performance) right from a dash switch.
Installation typically takes 15 to 30 minutes with basic hand tools, no cutting or splicing required, and every module is backed by a 3-year manufacturer's warranty with support from U.S.-based technicians. PSI fits a broad range of platforms, including Cummins, Power Stroke, Duramax, Paccar, and Detroit engines, plus ag mainstays like John Deere, Case IH, and New Holland.
What Customers Are Saying
Very pleased
"N14 easy install. Great power gains and most importantly a big mpg increase. Approx 1.4 increase in mpg."
M. Gorskey
Really helped out my combine
"Was able to get through the harvest faster. Worked great in my S7 600 Combine!"
B. Rutledge
My RV was a dog without this chip
"My 41 foot Newmar Northern Star was a dog on long inclines. This chip really woke it up!"
T. Johnson
Great N14 tune
"Definitely made my Cummins N14 run better."
C. Tavro
I like it
"I wasn't sure if I was going to like this, but I really do. I can tell it's working on my CAT engine for sure. Should have done this a long time ago."
L. Person
More skid steer power
"I like the results of your product on my Bobcat Skid Steer Loader. Works great."
L. Ramirez
Shop PSI Power Products
No code needed. The discount comes off automatically at checkout. Browse the full PSI Power Products lineup and add what fits your build before the sale wraps up on July 9. Have a question about fitment or which part is right for your truck? Reach out to our team and we'll help you sort it out before you order.
Happy 250th, America. Let's celebrate the right way.
Posted on: June 29, 2026
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