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Automotive Performance

About Us

Automotive Performance, based in Morris, Illinois, has proudly served Coal City, Mazon, Yorkville, Dwight, Minooka, and surrounding communities since 2017. Recognized as the region’s premier destination for automotive excellence, we specialize in classic repairs and upgrades, custom fabrication, and high-performance engine and transmission rebuilding. From everyday repairs to advanced performance upgrades—including superchargers, turbochargers, and off-road enhancements—our full-service shop delivers precision, power, and reliability. Trust Automotive Performance for expert care, unmatched craftsmanship, and service that drives results.


Areas Served

Morris, IL | Coal City, IL | Yorkville, IL | Pontiac, IL | Seneca, IL | Channahon, IL | Minooka, IL | Mazon, IL | Dwight, IL | Grundee County, IL | LaSalle County, IL | Will County, IL

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What We Offer

Our Specialties include:

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Testimonials

On 3/7/2026 Justin Klan had this to say:
This shop is a hidden gem, Jonathan is such a great, personable, and communicative shop owner. His shop was clean, his team was thorough, and there was no surprises (aside from the shock that I needed a new engine). My 2015 Yukon started making a loud tick/tap. 6.2 L86 engine had a bent pushrod. Unfortunately a previous shop had went to aggressive in cleaning the head and engine surface when doing another head gasket, leading to coolant leaking into the crank case. Instead of just slapping it back together and shipping it he did an oil analysis and along with other factors didn’t make sense to repair and rather opt for replacement. Jonathan dealt with the dealer, timeline was hit, and it was clear when I popped the hood the quality of work his team does, every bolt, cable, bracket ect was in place just like the factory. Aside from the shiny metal block, you would never know the motor was not original. Keep up the great work and my family extends a huge thanks for breathing new life into our family hauler!

On 3/6/2026 Mike Y had this to say:
Jonathan, Erin, and team are amazing, friendly, and provide honest service you can count on. They did and amazing job on our VW Atlas and would recommend them to anyone! Testimonial written by Mike Y on this site.

On 2/5/2026 Mozell Collins had this to say:
it was great very helpful people!!

On 12/31/2025 Bill Kersten had this to say:
Always above and beyond service! I use them regularly for all my vehicle needs. Never had to take a vehicle back due to improper repairs or diagnostics.

On 12/30/2025 Marcy Kritikos had this to say:
We take all our vehicles to Jon. Does amazing work and always treats us well. Nobody better! Testimonial written by Marcy Kritikos on this site.


Contact Us

Automotive Performance
1299 Leah Rd. Unit E Morris, IL 60450
Phone: (815) 513-5435

To the Rear of Baker Electric

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Payment Types Accepted

Apple Pay, Debit & Credit Cards

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM


News

🚗 Looking to give your ride a performance upgrade? Look no further! Our full-service automotive shop specializes in high performance engine upgrades, off-road enhancements, custom tuning, and more! Trust our expert team for all your automotive repair and restoration needs. From engine performance upgrades to brakes and exhaust, we've got you covered! Contact us today! 🛠️

FAQ

What services do you offer?
We provide a full range of automotive repair and maintenance services — including diagnostics, engine repair, suspension & steering, brakes, oil changes, tune‐ups, fluid services, and more.
Do you work on all makes and models, or only certain vehicles?
Yes — we work on a wide variety of vehicles, including domestic and import, light trucks and passenger cars. If you have any specific vehicle make/model concerns, just ask in advance.
How do I schedule an appointment?
You can call us to set up a time that works for your schedule. For major repairs or diagnostics, we recommend booking ahead so we can have necessary parts and equipment ready.
Do I need to bring any information or documents?
Bringing your vehicle’s make, model, year, mileage, and any relevant service history helps. Also, describe the symptoms or issue you’re experiencing. That will help our technicians diagnose more efficiently.
How much will it cost and how long will it take?
The cost and time depend on the vehicle, the issue, and whether parts are needed. We’ll provide you with an estimate before any major work is done so you know what to expect.

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