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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

Our Professional Associations

Penske Truck Rental Agent

Our Certifications

Master ASE Certified

What We Offer

Our Specialties include:

Classic Car - Mechanical Repairs or Upgrades
Custom Fabrication
Performance Engine and Transmission Rebuilding
Super and Turbo Chargers

Our Services include:

General Automotive Services: Reliable care for everyday driving. Our full-service automotive shop handles everything from routine oil changes and brake repairs to exhaust work, tune-ups, and air conditioning repair. We also install remote vehicle starters for added convenience and comfort. Whether you're maintaining your daily driver or restoring a classic, we’ve got you covered.
Diagnostics & Engine Services: Precision diagnostics and expert engine work. We offer professional automotive and check engine diagnostics to accurately identify issues and recommend the right solutions. Our team specializes in engine performance upgrades and light truck, high-performance engine, and transmission repair, ensuring your vehicle runs at its best.
Performance & Customization: Built for power, performance, and personality. As high-performance specialists, we provide custom solutions for off-road performance, lift kits, and custom and aftermarket tuning. We also fabricate custom race hoses and offer advanced modifications to elevate your vehicle’s capabilities and style.
At the heart of our shop is a passion for performance and precision. We specialize in classic car repair or upgrades, bringing timeless vehicles back to life with expert craftsmanship and attention to detail. Our custom fabrication services allow us to create one-of-a-kind components tailored to your vision, whether you're building a showpiece or a street machine. For those seeking serious power, we offer performance engine and transmission rebuilding, along with installation of superchargers and turbochargers to take your ride to the next level. If you're dreaming of speed, style, and standout performance, we’re the team to make it happen.

Our Brands include:

Edge
Holley
Zone Offroad
WeatherTech
HP Tuners
Rigid Lighting
Oracle LED
Chemical Guys
Interstate
Fragola
NuStart
Timbren
Wilwood
Yukon

Our Products include:

LED Lights
Off-Road Lights
Batteries
Street, Racing and Off-Road Tires
Performance Hoses
Remote Starts

Testimonials

On 6/9/2026 Paul Jepsen had this to say:
Thank you for the expert help at a fair price Testimonial written by Paul Jepsen on this site.

On 6/9/2026 Chuck Giertz had this to say:
I was coming into town from Arkansas for the Hot Rod Powertour, and just North of St. Louis, my Chevelle developed a violent vibration. Found out the transmission output seal came out. I was in a bad spot, and another tour participant referred me to Jonathan at Automotive Performance in Morris, IL. I called Jonathan and told him my predicament and he said to get the car to his shop. He went above and beyond to help and determined the trans was not getting fluid to the tail shaft bushing. He fixed everything the same day to get me back on schedule for the tour. I'm truly thankful to him and his staff for helping me. If your in need of honest work done, don't hesitate to use Automotive Performance. God bless!

On 6/5/2026 Amanda Wajchert had this to say:
Looked for quite awhile to find a good and honest diesel mechanic for my F250. Even though they are not local to me, Automotive Performance was so highly recommended by a fellow diesel owner that I made the 40 minute trek to service my truck. So glad I did! Have unfortunately had to visit them several times since then, but will never go anywhere else. Owners are awesome and stand by their work. They do a great job at very fair prices. So anyone who is searching reviews because you’re unsure where to go or who to trust with your vehicle, this is the place.

On 6/1/2026 Todd Boss had this to say:
When it comes to a mechanic that knows what your car or truck needs without all the extras to mark up the price there is no better place to go the Automotive Performance. They know what they are doing and the price is always affordable.

On 4/21/2026 Kyle Urbasek had this to say:
Jonathan and his staff have taken care of several of my vehicles. He is always fair on price and fast with service. Have never been disappointed and neither will you. Would definitely recommend.

Contact Us

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

To the Rear of Baker Electric

Where To Find Us

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.