Dealership-level work. Without the dealership.
Factory-level diagnostics, OEM-quality parts, and ASE-certified technicians for Audi, BMW, Mercedes-Benz, Porsche, Lamborghini and ten more marques — every repair backed in writing by a 12-month/12,000-mile warranty.
One shop. Daily maintenance to full builds.
The same bays that handle your factory-scheduled service also handle transmission conversions and custom fabrication. Bring it in for an oil change; bring it back for the build.
Engine Repair
Diagnostics, repair, and full rebuilds for European and exotic engines — from VANOS work to complete overhauls.
Transmission Repair
Repair, replacement, driveline and axle service — including DSG service with factory-approved fluids and SMG-to-manual conversions.
Brake Repair
Pad replacement, fluid flushes, and brake line repair for reliable stopping power on street and track.
Suspension Repairs & Rebuilds
Shocks, struts, chassis, and full suspension rebuilds — plus performance upgrades like H&R springs and sway bars.
Oil Changes
Routine oil and filter service using premium products like Liqui Moly, matched to your marque's spec.
Factory Scheduled Maintenance
30/60/90/120K services, Inspection I/II, fluid services, and emissions inspections — dealership schedule, independent pricing.
Computer Diagnostics
Factory-level diagnostic tools and software for European marques. Check engine lights read right the first time.
Car Tuning
Performance tuning and optimization — aftermarket exhausts, turbocharger work, and ECU tuning.
Performance Builds & Modifications
Aftermarket parts installation and full modification builds, planned and executed in-house.
Custom Car Fabrication
Custom fabrication for one-off builds and modifications that don't come in a catalog.
Performance Suspension
Springs, sway bars, and handling packages that make your car corner the way it should have from the factory.
SMG out. Six-speed in.
Our most-talked-about job: a complete SMG-to-manual conversion on a BMW E46 M3 — third pedal, shifter, wiring, and coding, all done in-house. It's the kind of work that rolls through Villa Park every week here, alongside engine rebuilds, suspension overhauls, and full performance builds on everything from daily-driver Volkswagens to exotics.
If a dealership told you it can't be done, or quoted you a number that made you sit down — bring it to us. That's usually how these projects start.
We're not the cheapest shop in the western suburbs. We're the one that does it right the first time — and backs it with 12 months / 12,000 miles in writing.
Start My Project
Everything the dealer does. Nothing the dealer charges.
Zealous Performance was built on European repair work and has earned a reputation across Illinois for fair pricing and factory-trained hands. We treat every vehicle — new or used — like it's ours.
Warranty In Writing
Every repair and service is backed by a 12-month / 12,000-mile warranty on parts and labor. No fine print games.
OEM-Quality Parts
Factory-approved fluids and OEM-quality replacement parts, so your car stays the car it was built to be.
Factory-Level Diagnostics
The same diagnostic tools and software the European dealerships use — with ASE-certified technicians running them.
After-Hours Pickup & Drop-Off
Drop your car when it works for you, not just when we're at the counter. Open Saturdays too.
Real cars. Real work.
No stock photos — this is what's actually on our lifts in Villa Park.
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Open Monday–Saturday in Villa Park
Zealous Performance739 N Yale Ave.
Villa Park, IL 60181
| Monday – Friday | 8:00 AM – 6:00 PM |
| Saturday | 8:00 AM – 2:00 PM |
| Sunday | Closed |
Tell us about your car
Send the details and we'll call you back within one business day with honest answers and a straight number — no pressure, no upsell script.