How Much Does Catalytic Converter Replacement Cost in Illinois?
Illinois pricing is near the national average. Updated for 2026.
Catalytic Converter Replacement Pricing in Illinois
In Illinois, the average cost for catalytic converter replacement is $2,100 per converter, which is 5% higher than the national average of $2,000. Most Illinois residents pay between $1,050 and $3,675.
Illinois has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
Catalytic converter replacement is one of the most expensive exhaust system repairs. The converter contains precious metals (platinum, palladium, rhodium) that make it costly. It's required for emissions compliance.
Illinois vs National Average
What Affects Catalytic Converter Replacement Cost in Illinois?
Part Source
Aftermarket: $500-$1,500. OEM: $1,500-$3,500. CARB-compliant: $1,000-$2,500
Vehicle
Standard car: $1,000-$2,000. Truck/SUV: $1,500-$3,000. Luxury: $2,000-$4,000+
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💡 Tips to Save on Catalytic Converter Replacement in Illinois
- 1.Aftermarket converters cost 40-60% less than OEM but may not be legal in all states (California requires CARB-compliant)
- 2.Independent muffler shops charge less than dealerships
- 3.Check if the repair is covered under your vehicle's emissions warranty (often 8 years/80K miles)
- 4.Get multiple quotes — prices vary dramatically
📈 Catalytic Converter Replacement in Illinois Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $1,784 | — |
| 2021 | $1,859 | +4.2% |
| 2022 | $1,980 | +6.5% |
| 2023 | $2,035 | +2.8% |
| 2024 | $2,100 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Catalytic Converter Replacement in Illinois
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Frequently Asked Questions
How do I know if my catalytic converter needs replacing?
Symptoms include check engine light (P0420 code), rotten egg smell, reduced performance, and failed emissions test.
Catalytic Converter Replacement Cost in Other States
Related Cost Guides for Illinois
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