Built for Power, Tuned for Precision

Speidell Supercars & Auto Repair in Poughquag, NY, is Dutchess County's destination for serious performance work. Whether you're chasing more horsepower, dialing in your tune, or building your car from the ground up, our team brings Ford factory-trained expertise and over a decade of hands-on experience to every build. Call us at (845) 724-4866 to talk through your performance goals.

Dyno Tuning That Delivers Real Results

In-house dyno tuning replaces generic off-the-shelf maps with precise, custom calibration tailored specifically to your engine, modifications, and fuel. Whether you’ve added a cam, upgraded to forced induction, or installed a high-flow exhaust, a custom dyno tune unlocks every bit of hidden horsepower while keeping your engine safe, reliable, and performing at its peak.

Blue sports car with hood open in a garage, showing the engine compartment.
Black classic Mustang in a garage with hood open, front view showing chrome grille and round headlights

Remote Tuning via HP Tuners RTD

As an authorized HP Tuners dealer, Speidell Supercars & Auto Repair offers remote tuning through HP Tuners RTD for customers who can't make the drive to Poughquag, NY. You log your data, we review it and push an updated calibration, and you're back on the road with a dialed-in tune.

Performance Services

Our performance services include tuning, exhaust upgrades, engine rebuilds, custom fabrication, Holley Sniper 1 and 2 installations, and Whipple Superchargers.

Two black sports cars parked outdoors under a blue sky

Frequently Asked Questions About Performance Tuning

  • How much does dyno tuning cost?

    Pricing varies based on the platform, modification level, and tuning type. Call us at (845) 724-4866 for a quote specific to your vehicle.

  • Can I get a remote tune from Speidell Supercars & Auto Repair in Poughquag, NY?

    Yes, we offer remote tuning through HP Tuners RTD for customers across the region and beyond. You'll need a compatible data logger, and we'll walk you through the process.

Ready to Unlock Your Vehicle's Full Potential?

Speidell Supercars & Auto Repair in Poughquag, NY, brings real dyno expertise and factory-trained knowledge to every performance build in the Hudson Valley. Stop guessing at power numbers and start driving a car that's properly tuned and built to perform. Call us at (845) 724-4866 and let's get started.

Black sports car on a service lift in a garage, rear view with red taillights and a license plate visible