Prescott Speed logo with racing theme.

Prescott Speed

Automotive Repair, Performance Builds & Dyno Tuning in Prescott, AZ


Welcome to Prescott Speed, formerly High Country Performance. We specialize in general automotive repair, diagnostics, and custom performance upgrades, including dyno tuning, all in Prescott, Arizona.


From everyday vehicles to classic muscle cars, modern performance builds, and specialty projects, our team combines hands-on experience with the latest automotive technology and high-quality automotive accessories.


Same experienced team. Same commitment to quality. New name.

mercury marauder with hood open in parking lot.

What We Do

Automotive Repair & Diagnostics

Our services encompass general automotive repair, maintenance, electrical diagnostics, driveability concerns, and troubleshooting, ensuring your vehicle runs smoothly with the right automotive accessories.


Performance Builds & Upgrades

We specialize in custom performance projects, engine swaps, forced induction, drivetrain upgrades, and vehicle modifications to enhance your driving experience.


Dyno Tuning & ECU Calibration

Our professional dyno tuning services include custom ECU calibration, baseline horsepower testing, and performance diagnostics. We support both front-wheel-drive and rear-wheel-drive vehicles, with plans for an AWD dyno in the future.

A row of parked cars outside an industrial building.

Where To Find Us

Locally owned and operated in the Prescott area, we specialize in automotive accessories, dyno tuning, and general automotive repair. 


1024 Spire Dr Suite A Prescott Arizona 86305

Our Services:

Blue Z28 muscle car lifted for repair in a garage.

General Automotive Repair

 From routine maintenance to major mechanical repairs, Prescott Speed provides professional automotive repair in Prescott, Arizona. We service everyday vehicles, classics, and specialty applications, with an emphasis on accurate repairs and dependable workmanship. 

Race car on a dynamometer in a workshop.

Advanced Diagnostics & Specialized Repairs:

 

We specialize in difficult-to-diagnose automotive problems, complex mechanical repairs, electrical issues, and drivability concerns. When conventional repairs haven't solved the problem, our team takes a methodical approach to finding the underlying cause.

Performance Builds & Dyno Tuning

Performance Builds & Dyno Tuning

 From engine swaps and forced induction to custom performance upgrades and ECU calibration, Prescott Speed brings your project together. Our in-house 2WD chassis dyno supports FWD and RWD tuning, horsepower testing, and performance diagnostics.