Precision Calibration & Mechanical Service

15+ years of engine management experience in the Pacific Northwest. Dedicated to reliable power, clean drivability, and meticulous mechanical care.

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About R.Spec Tuning

Pacific Northwest Engine Calibration Specialists

Proven Track Record

With over 15 years of dedicated engine management and tuning experience in the Pacific Northwest, we specialize in creating ultimate reliability and power out of performance platforms.

Meticulous Calibration

We don't believe in one-size-fits-all maps. Every tune is built around your specific hardware setup to maximize power delivery while prioritizing engine safety and drivability.

Full Mechanical Support

Our capabilities include normal maintenance and car repair, pre-tune mechanical checks, troubleshooting, part installs and complete engine builds, our facility handles both wrenching and ECU calibration under one roof.

General Rates & Interactive Estimator

Transparent hourly service rates and a custom tuning estimate calculator

Shop Labor Rate

$180 / hr

Mechanical wrenching, repairs, installation, and troubleshooting

Pre-Tune Inspection

$200

Leak checks, boost pressure testing, hardware & safety verification

3-Pull Dyno Baseline

$160 - $200

Power pulls with clear digital and physical graph printouts

Standalone Calibration Rate

$200 / hr

Haltech, Link, Holley, FuelTech, ECUMaster, MegaSquirt setups

Supported Vehicle Platforms

Hover over (or tap on mobile) a platform below to see supported models & tuning software

Subaru

Chevy / GM

Nissan / Infiniti

Toyota / Scion

Ford

Standalone ECUs

Other / Custom

Interactive Tuning Cost Estimator

Drag the slider below to select your vehicle's setup complexity.

1. Basic Bolt-Ons

Intake, catback/downpipe exhaust, minor bolt-on upgrades, or basic Stage 1/2 factory ECU reflash.

Estimated Tune Cost

$600

Mustang MD-150 AWD Dyno Rental

Yes we do dyno rentals! Have you tuned your own car and just need to get that last little bit buttoned up in a safe controlled environment? Do you have questions about the tune you are running and want to bounce those thoughts and ideas off of someone who is experienced? That is exactly what we can provide with our Mustang MD-150 AWD Dynamometer.

The dyno is linked awd but can be unlinked to run front wheel drive or rear wheel drive at the push of a button. The dyno has state of the art HoleShot software that can be run from any device with a wifi connection. You will get printouts and PDF of Wheel Horsepower, Torque, Boost, Air Fuel Ratio, and more if needed.

Cost for rental is by the hour: $180/hr (minimum 2 hours).

If you have questions about the process and how it works or would like to inquire, please reach out via the contact form below.

Schedule & Request Appointment

Check availability on the calendar, acknowledge the waiver, and submit your request below

1. Check Live Availability

2. Acknowledge Waiver to Book

LIABILITY WAIVER AND PRE-TUNE AGREEMENT

1. Assumption of Mechanical Risk: Engine management tuning, dynamometer testing, and performance testing deliberately push mechanical systems to extreme stress limits. I acknowledge that there are inherent risks involved with ECU recalibration and high-load testing, including component strain or mechanical failure. Any damage incurred to my vehicle before, during, or after operation, calibration, or testing is solely my responsibility as the vehicle owner. This includes, but is not limited to, the engine, transmission, transfer assembly, clutch, differential, turbocharger/supercharger, cooling system, brakes, and tires.

2. Full Liability Release: Unpredictable mechanical conditions can arise during dyno or street testing that are beyond the tuner’s control. By proceeding, I explicitly release R.Spec, LLC, its owners, operators, and employees from any and all claims, financial losses, repairs, or liabilities arising from vehicle testing or engine calibration.

3. Off-Road Competition & Emissions Compliance: Engine calibrations performed by R.Spec, LLC are intended strictly for off-road or sanctioned racing/competition use. R.Spec, LLC shall not be held liable or responsible for emissions compliance, street legality, or regulatory issues under local, state, or federal law.

4. Pre-Tune Inspection & Mechanical Labor: Vehicles will undergo a brief pre-tune safety inspection prior to testing. The vehicle must otherwise arrive fully mechanically ready to tune, free of fluid leaks, with fresh spark plugs, and filled with appropriate fuel. Any extra labor time required to diagnose, repair, or modify the vehicle to safely complete the tuning process will be billed at R.Spec, LLC's shop labor rate ($180/hr).

5. Incomplete Calibrations: If tuning cannot be safely completed due to pre-existing mechanical defects, boost leaks, electrical issues, or part incompatibilities, a minimum of 50% of the total agreed tuning fee must be paid. Any remaining balance or re-tune scheduling remains at the sole discretion of R.Spec, LLC.

We thank you for your cooperation and look forward to working with you on your build!

Sincerely,
R.Spec, LLC

↓ Scroll to the bottom of the agreement to enable checkbox ↓ I have read, understand, and agree to the R.Spec, LLC Waiver.

3. Submit Booking Request

What Our Clients Say

Real feedback from performance enthusiasts in the PNW

Marcus T.

2 weeks ago

★★★★★

"Riley got my STI dialed in perfectly on the dyno. Drivability is stock-smooth when cruising, but power delivery under boost is insane."

Derek K.

1 month ago

★★★★★

"Rented dyno time for a self-tune. The MD-150 and HoleShot software made monitoring super easy. Highly recommend R.Spec!"

Jordan R.

2 months ago

★★★★★

"Caught a boost leak during pre-tune inspection, fixed it on the spot, and made great torque numbers safely."

General Inquiries

Have questions before booking? Send us a message.