Typically, replacing the catalytic converter on a 2006 Honda Civic costs roughly 300 to 1,800 dollars when you factor in parts and labor. The exact total depends on whether you choose an OEM part, an aftermarket option, or a used unit, as well as local labor rates and how many catalytic converters your Civic requires.
What affects the price
Several factors determine the final price for a Civic’s catalytic converter replacement.
- OEM versus aftermarket versus used parts
- Number of catalytic converters required (some Civics use a single unit, others may have more)
- Engine type and trim (base models versus higher-performance variants)
- Local labor rates and shop pricing
- Additional work such as oxygen sensor replacement, gaskets, or clamps
Understanding these factors helps explain why prices can vary widely from one shop to another.
Typical price ranges by part type
Pricing depends on the part type you select. Here are common options and what they typically cost (parts only), with labor added separately.
- OEM Honda replacement (direct-fit): commonly $500–$1,200+ for the part, with labor on top
- Direct-fit aftermarket catalytic converter: about $150–$600 for the part, with labor on top
- Universal aftermarket catalytic converter: roughly $100–$300 for the part, often requiring professional fabrication and installation
- Used or remanufactured catalytic converter: usually $50–$250 for the part, with higher risk and potential warranty limitations
- High-flow or performance cat (direct-fit or modular): typically $300–$900 for the part, with labor on top
Prices can shift due to supplier stock, regional demand, and new vehicle-part pricing trends, so shop around for current quotes.
Labor and installation considerations
Labor costs and installation specifics can significantly affect the total price beyond the part itself.
- Typical labor rates range from about $80 to $150 per hour, depending on region and shop
- Most single-cat replacements take roughly 1–2 hours; dual-cat setups or additional work can extend to 2–4 hours
- Expect extra charges for gaskets, oxygen sensor replacements, clamps, or rusted fasteners
- DIY installation is possible for the mechanically inclined, but improper fit or sensor damage can lead to further costs
Always request a written estimate that separates parts, labor, and any ancillary fees, and verify whether the price includes a warranty on the new converter.
Shopping tips and where to buy
Smart shopping can save money while ensuring emissions compliance and performance.
- Confirm compatibility for your exact Civic year, trim, and engine (e.g., 1.7L vs. Si’s 2.0L)
- Compare prices from multiple sources: local auto parts stores, online retailers, and the dealership
- Ensure you get a CARB-compliant (EO-number) catalytic converter if you live in California or other CARB-regulated areas
- Ask about core exchange programs, warranties, and return policies
- Check for shipping times if ordering online and verify whether installation is available nearby
Warranties vary by part type and supplier, so read the terms carefully and keep the receipt for potential replacements under warranty.
Summary
For a 2006 Honda Civic, the installed cost of a catalytic converter generally falls between about 300 and 1,800 dollars, driven by part type (OEM, aftermarket, or used), the number of converters involved, and local labor rates. OEM parts tend to be at the higher end of the spectrum, while aftermarket or used options can offer substantial savings but may come with trade-offs in fit, longevity, or emissions compliance. Always obtain multiple quotes, confirm compatibility, and consider warranty coverage to make an informed decision.
Is it worth replacing your catalytic converter?
Additionally, driving without one can be dangerous because your vehicle won't accelerate properly. You may also notice that your car has lesser power in lower gears. Therefore, replacing the catalytic converter is important and should not be delayed.
Does a 2006 Honda Civic have a catalytic converter?
A stainless steel, low heat-mass exhaust system is standard on the Civic Si. The system employs a high-density catalytic converter for improved light-off performance and reduced hydrocarbons and NOx.
Can I still drive with a bad catalytic converter?
While your vehicle may still run with a failing catalytic converter, driving with one for an extended period is not recommended.
How much does it cost to fix a catalytic converter on a Honda Civic?
The average cost for a Honda Civic Catalytic Converter Replacement is between $2,500 and $3,337. Labor costs are estimated between $176 and $258 while parts are priced between $2,324 and $3,079. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.


