For a 2008 Mitsubishi Eclipse, a catalytic converter replacement typically costs between roughly $400 and $1,500 installed, depending on the engine variant (4-cylinder vs. V6), whether you replace one or two converters, and whether you choose OEM or aftermarket parts.
Prices reflect U.S. market conditions and include parts and labor. California and other states with strict emissions rules can add costs for CARB-compliant units and possible inspection fees. The following sections break down price ranges, factors that affect price, and tips for getting quotes and making informed choices.
Cost ranges at a glance
Prices shown below cover typical parts and labor for standard installations. They assume a single converter on most 4-cylinder Eclipse models; dual converters are common on V6 variants and generally cost more.
- Single catalytic converter (4-cylinder Eclipse)
- Aftermarket direct-fit: Parts $120-$350; Labor $100-$200; Installed $220-$550.
- OEM direct-fit: Parts $350-$800; Labor $120-$260; Installed $470-$1,060.
- Dual catalytic converters (V6 or dual-cat setup)
- Aftermarket: Parts $350-$700; Labor $150-$280; Installed $500-$980.
- OEM: Parts $700-$1,200; Labor $180-$320; Installed $880-$1,520.
Prices can vary by region, shop, and the exact configuration of the Eclipse. Use these figures as a baseline to compare quotes from local mechanics or dealerships.
What affects the price
Several factors can swing the total cost of a catalytic converter replacement beyond the base ranges above.
- Engine variant and number of converters (4-cylinder vs V6; one vs two converters).
- OEM versus aftermarket parts (brand, fit, and warranty).
- California CARB compliance requirements and EO-number status.
- Labor rates and geographic location of the shop or dealership.
- Condition of surrounding exhaust components and need for additional tasks (gaskets, O2 sensors, wiring, or exhaust pipe adjustments).
- Diagnostic fees or emissions-related inspections tied to the replacement.
Understanding these factors helps you interpret quotes and avoid paying for unnecessary work or noncompliant parts.
Getting quotes and choosing a shop
To ensure you get a fair deal and a compliant repair, follow these steps when seeking quotes.
- Request a detailed, written estimate that itemizes parts, labor, taxes, and any disposal fees.
- Ask whether the quote specifies OEM versus aftermarket parts and if CARB-compliant units are available in your state.
- Have similar part types compared across shops (e.g., OEM to OEM) so you’re comparing like-for-like.
- Inquire about warranty coverage for both parts and labor, and what the warranty excludes.
- Confirm whether additional work (sensors, gaskets, or pipe work) is included in the price or billed separately.
Smart shopping combines clear quotes with attention to emissions compliance and shop reputation.
California-specific considerations
In California and other emissions-focused states, catalytic converters must be CARB-compliant to pass inspections and remain street-legal.
- Look for CARB EO numbers on the part listing to ensure compliance.
- Factor in potential delays or extra costs if a shop needs to verify or certify the part for emissions testing.
Verify with your mechanic and local regulations before purchasing to avoid rejected inspections or future retests.
Summary
The 2008 Mitsubishi Eclipse can require either one or two catalytic converters, depending on the engine configuration, which significantly influences total replacement cost. Expect installed prices from roughly $400 to $1,500, with higher figures for OEM parts, dual-converter setups, or California CARB-compliant requirements. Always compare multiple quotes, confirm part type and emissions compliance, and consider warranty terms to balance cost with reliability and long-term emissions performance.