About Wisher Performance
The Mission
Wisher Performance exists to solve the challenges others call impossible.
We engineer factory-grade calibrations and specialized hardware for modern GM platforms. We don't just chase peak numbers; we deliver seamless, uninterrupted integration with factory OEM systems for enthusiasts who demand zero compromise from their vehicles.
Our Philosophy
Performance should work as seamlessly and reliably as the factory intended—without compromise.
Rather than chasing short-term gains or quick fixes, we focus exclusively on solutions that integrate flawlessly with complex factory architecture.
Our goal is to maintain factory-level reliability while delivering consistent, repeatable results under real-world conditions.
This philosophy is the foundation of our development process, seamlessly combining rigorous engineering analysis with extensive trackside and real-world street testing.
Because at the end of the day, a product shouldn't just perform under racing conditions—it needs to drive flawlessly every single day on the street.
Engineering at the Core
True engineering isn't learned in a classroom; it is a relentless pursuit of logic, passed down through generations.
Long before Wisher Performance founder Caleb Wisher earned his B.S. in Mechanical Engineering or began his professional career, he was already wired to deconstruct problems and build better solutions.
Growing up under the guidance of a father who was both an IT specialist and a mechanical designer, Caleb developed a natural instinct for complex systems and logical problem-solving. He watched his father seamlessly navigate both software and physical design—a masterclass in precision that directly mirrors how Caleb approaches elite automotive engineering today.
His father passed away before seeing Wisher Performance reach the global stage, but his influence is stamped onto every calibration and component that leaves this shop. For Caleb, engineering isn't just a career; it is a way of thinking that runs in the family, a legacy carried forward with every breakthrough. Whether solving an impossible technical challenge or breaking through factory limitations in modern GM control modules, he doesn't stop until the logic is right—because anything less would compromise the standard he was raised on.
That relentless drive for precision is the foundation of Wisher Performance. We don't just build parts. We engineer legacy-tier solutions for people who understand that details matter.
Proven At The Track
Experience isn't built in a lab. It's built in the staging lanes, between passes, and under real racing conditions.
Caleb spent years at the track dialing in platforms for friends and customers, working behind a laptop in the heat of the staging lanes to find every ounce of performance.
Those years weren't just about racing; they were spent identifying the critical limitations engineered into modern GM platforms and developing the data-driven solutions that would become the foundation of Wisher Performance.
That real-world, high-stress experience is exactly what shapes our development process today. We don't guess based on data logs in a controlled room—we calibrate for reality.
Theory into Practice: The Canyon Build
Caleb didn’t wait for a diploma to start innovating.
Just two years into pursuing his engineering degree, he was already re-engineering his GMC Canyon from the ground up.
The build featured a complex, complete powertrain transformation: swapping in a 2.4L Ecotec 4-cylinder from a Malibu and pairing it with a 5-speed Solstice manual transmission.
This wasn't a standard garage swap. Every line, mount, and calibration was engineered to ensure the vehicle looked, communicated, and functioned exactly as if it were factory.
Caleb still owns the truck today as a testament to the uncompromising, factory-level standards that Wisher Performance is built on.
Pushing The Limits: The Escalade V
We don’t just claim capability; we prove it on the world's most restrictive platforms.
While competitors talk about reverse engineering, Wisher Performance shattered the limitations of the Global B platform by tuning the fastest Escalade V in existence.
Utilizing an unlocked E99 ECM and T93 TCM, Caleb developed a full software and hardware suite: standalone bypass valve control logic, MAF limit extensions, optimized PE vs. Boost mapping, and the world's first factory ECU-controlled Global B supplemental fuel injection system.
The result is a 6,500 pound luxury SUV capable of world-class performance.
The Birth of AuxJection
AuxJection wasn't built to join the market; it was built because the market was failing.
Frustrated by "good enough" supplemental fueling options that compromised reliability, Caleb utilized his years of professional corporate product development and trackside engineering to create a solution.
The AuxJection system is the definitive answer for high-horsepower builds: a reliable, precise, and entirely factory-integrated supplemental fueling system designed to operate exactly as the factory intended.
Why Choose Wisher Performance?
- Elite OEM-Level Engineering: Designed and executed by Caleb Wisher, a credentialed B.S. Mechanical Engineer with deep expertise in modern automotive architectures. We don't guess; we engineer solutions based on physics and data.
- Born from Passion, Refined by Reality: Built from a foundation of lifelong hands-on experience, a rich family legacy of technical mastery, and years of relentless trackside development.
- Proven Results: We specialize in conquering the platforms others back away from. From advanced AuxJection fueling systems to calibrating the fastest Escalade V in existence, our success is proven on the asphalt, not just a computer screen.
At Wisher Performance, every calibration and every component is built with a singular philosophy: performance should work as seamlessly and reliably as the factory intended—without compromise.