Great Experience with Grizzly Tuning!! Trevor responded to my inquiry very quickly and made himself available to help answer a few questions i had. Because of that level of customer service i setup a tune with him!! Even after the tune session he followed up asking how the car was performing. I told him i needed to be faster, now i am saving for a new setup! I will have the fastest corvette on long island with grizzly tuning in my corner! Thanks Trevor!!
Tune Your Engine Right
Custom ECU tuning on the dyno in Bohemia. Great drivability is our main focus, along with strong peak horsepower that's safe to run. We explain every step so you understand what changed.
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- 5.0★
- Average rating
- 60+
- Google reviews
- 6
- Areas served
- 5.0 Stars on Google
- 60 Google Reviews
- Explains Every Detail
- Dyno Tuning Service
/WHAT WE DO
TUNING SERVICES
Dyno tuning, diagnostics, and custom solutions for your build.
/OUR WORK
Vehicles We've Worked On
/FAQ
FREQUENTLY ASKED QUESTIONS
You bring your car in, we load it on the dyno, and we make small adjustments to your ECU map while monitoring performance in real time. We test fuel, ignition timing, boost pressure (if you have it), and other parameters until the engine runs strong across the RPM range. You see the before-and-after numbers, and we walk you through what changed and why.
Yes. We tune for whatever fuel you run: pump gas, premium, E85, or a blend. The tune is specific to your fuel choice, so the engine runs optimally on what you put in. If you ever switch fuels, let us know so we can adjust the map if needed.
Yes. If you have a turbo or supercharger, we integrate it into the tune, handle boost control, and solve any electrical or cold-start issues that come with the modification. We dial it in for reliability and power together.
A typical tune is a few hours, depending on how much testing and adjustment your car needs. Complex builds or electrical troubleshooting can take longer. Call for an honest estimate based on what you're bringing in.
Often yes. We run full diagnostics to find the fault code, solve the problem, and get the car running smooth. Many issues are electrical quirks or sensor problems that we can resolve during a tune session.
We're in Bohemia and work with customers across Long Island. Call to confirm we can work on your specific vehicle.
We're open Monday through Friday, 4:30 to 10:00 PM. Weekends are closed. Book ahead to reserve your dyno time.
Still have questions? Contact Us