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Serving Bay Shore★ 5.0 (60+ reviews)5.0 stars from 60 Google reviews

Expert Auto repair in Bay Shore, NY

Auto repair for drivers in Bay Shore, NY, from our shop in Bohemia. Call or text to book your vehicle.

Rated 5 on Google
  • 5.0 Stars on Google
  • 60 Google Reviews
  • Explains Every Detail
  • Dyno Tuning Service

Find Us From Bay Shore

Grizzly Tuning

Bohemia, NY
(631) 507-5593
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/REVIEWS

WHAT OUR CUSTOMERS SAY

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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!!

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David Brown

Trevor is not only an absolutely amazing tuner but he takes the time to help you to understand and explain any question you may have, he really goes above and beyond to get your vehicle dialed in, he's got my rcsb chevy running amazing and even worked out a few electrical quirks my truck was having HIGHLY recommend trucks running the best it ever has!

J

Jake Bunai #920

Ive known trevor for awhile and his first time tuning anything of mine was my 2024 Cadillac ct5v Blackwing and im super happy with how the car runs and how he handled all the little stuff we had to deal with! 10 outta 10 would recommend

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derek Gonnelly

Dude can tune! my turbo ls swapped car runs like a champ on pump e85 and cold starts without hesitation after months of sitting. If you're looking to make Powa and reliability Trevor is your guy

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Chris Gottlieb

Trevor is a great dude, answers any questions or concerns you might have no problem. Loaded the car up on the dyno and got right down to business. Put down some impressive numbers for what I brought him and the car is driving like a champ. Take your cars here with confidence!

M

Mike D

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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

Serving Bay Shore

Bay Shore is one of the larger downtowns on the south shore, with Main Street running along Montauk Highway, a busy marina, and ferry terminals serving Fire Island. It sits close to both the Southern State Parkway and Sunrise Highway, with beach and ferry traffic pouring through in summer, so local driving swings between crawling summer traffic and open highway. Housing ranges from older homes near the water to denser blocks closer to the train station. That mix of short trips, heavy traffic and highway runs puts real demands on how an engine idles, cruises and pulls. Winter adds cold starts and salted roads to the list.

Areas of Bay Shore we serve

  • Main Street
  • Southern State Parkway
  • Bay Shore Marina

Why Bay Shore customers need this work

A tune that feels great at wide open throttle can still surge or stumble at part throttle in traffic. Around Bay Shore, where a drive can mean inching along Main Street in summer and then merging onto the Southern State, part-throttle fueling and transient response matter as much as peak power. On the dyno we can hold the engine at steady loads to tune cruise and low-speed behavior, then make full pulls to set fuel and timing at the top end.

Recent work in the Bay Shore area

  • 01.Smoothing part-throttle surge on a modified daily driver
  • 02.Setting boost control on a turbo or supercharged build
  • 03.Clearing a check-engine light caused by a sensor or wiring fault

Why Choose Grizzly Tuning for Auto repair in Bay Shore

Grizzly Tuning works with Bay Shore drivers who want more power without giving up drivability. We tune on the dyno at our Bohemia shop, adjusting fuel, ignition timing and boost for the parts and fuel in your car. We also handle check-engine diagnostics and the electrical problems that show up on modified cars. Sessions run on weekday evenings, so you can bring the car in after work and talk through the plan with us first.

Bay Shore customers choose us because we treat every project like it's our own — no upselling, no surprises, just straightforward work that gets the job done right.

Whether you live in Bay Shore or just need a reliable team nearby, we're a short drive from Bohemia and happy to walk you through every recommendation before any work begins.

Bay Shore customers come to our Bohemia shop for tuning that is built and tested on the dyno, not guessed at. We open Monday through Friday from 4:30 to 10 PM. Before we start we ask how you drive the car and what you want from it, and when we finish we show you the results and explain each change. That way you leave knowing what was done to your engine. Grizzly Tuning has 5.0 stars from 60 Google reviews. Call (631) 507-5593.

Services We Offer in Bay Shore

Every service below is available to Bay Shore customers. Click any service for full details.

Other Areas We Serve

We proudly serve customers across the region — find your town below.