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Is changing exhaust expensive?

Changing an exhaust can range from affordable cosmetic tweaks to costly mechanical replacements. Basic muffler work is relatively inexpensive, while catalytic converters or full-performance systems can run into the thousands. Costs vary by vehicle, part quality, and labor rates in your area.


What you might change in an exhaust system


Here are the most common exhaust-related changes and their typical price ranges.



  • Catalytic converter replacement or repair — typical total cost often ranges from about $1,000 to $2,500, with higher prices for premium or CARB-certified parts and vehicles that require exact OEM equivalents. Theft risk and availability of parts can also influence price.

  • Full cat-back or performance exhaust system — parts typically run from around $300 to $1,800, with labor usually between $200 and $600. Total project cost often falls in the $500 to $2,400 range, depending on material (stainless vs. aluminized steel) and vehicle.

  • Muffler replacement or tips — basic muffler work can be as low as $100 to $350 for parts, with labor around $50 to $150; total project cost commonly $150 to $500. Performance or premium mufflers can push the price higher.

  • Headers and exhaust manifolds — aftermarket headers can cost roughly $300 to $1,200 for parts, with higher-end stainless options closer to $700–$1,800. Labor may run $300 to $900, bringing total to about $600 to $2,700 or more depending on the vehicle.

  • ECU tuning or emissions-related work to ensure compatibility with exhaust changes — simple software updates can be $100–$300, while dyno-tuned or custom calibrations can range from $300 to $1,500+.


In brief, the cost you encounter tracks closely to the scope of the job—from cosmetic exhaust tips to major power- or emissions-related upgrades. Budget accordingly for parts, labor, and any required regulatory considerations.


Catalytic converters: market realities


Because catalytic converters are a key emissions component, prices hinge on the car’s make, model, and whether the part is OEM or aftermarket. In some regions, CARB-compliant parts are mandatory, which can influence availability and cost. Labor to remove and replace a converter can be substantial if the exhaust is difficult to access or if rust has seized fasteners.


Cat-back systems: what you’re buying


A cat-back system replaces everything from the catalytic converter back to the tailpipe. The price gap reflects materials (stainless steel tends to last longer but costs more) and the level of performance tuning. Expect more labor on newer or performance-focused platforms due to tight OEM layouts.


Mufflers and tips: sound vs. price


Replacing a muffler or simply upgrading tips is usually cheaper and less invasive than a full exhaust swap. However, some high-performance mufflers can alter tone and drone, and installation may require precise fitment to avoid rattles or clearance issues.


Headers and manifolds: performance choice


Headers are a performance-focused upgrade generally aimed at optimizing exhaust flow. They’re more expensive and involve more labor, often with considerations for heat management and exhaust routing on modern engines.


Beyond the price: other factors that influence cost and value


Work on exhaust systems isn’t just the sticker price. Several non-price factors affect the total bill and the value you’ll get from the change.



  • Legal and emissions compliance — In some states, aftermarket exhausts must be CARB-certified or pass emissions testing. Noncompliant parts can lead to failed inspections, additional work, or fines, increasing overall cost.

  • Warranty and vehicle coverage — Many manufacturers restrict or void warranty coverage for certain aftermarket exhaust modifications. Always verify how changes may affect your warranty or service agreements.

  • Labor variability — Availability of skilled technicians, access challenges on newer models, and local labor rates can swing totals by hundreds of dollars.

  • Part quality and longevity — Cheaper components may wear out faster or corrode, leading to sooner follow-up service. Stainless steel options typically last longer but cost more upfront.

  • Sound, drone, and drivability — Some upgrades improve tone and performance, others may introduce unwanted noise or chassis resonance. Align your choice with acceptable daily use and local noise regulations.


Before committing, discuss your goals with a reputable shop, request itemized estimates, and verify how parts and tuning will interact with emissions tests and warranties.


Planning your budget and getting the right fit


To avoid surprises, approach exhaust changes with a clear plan and multiple quotes. Understand what you want to achieve (quiet daily driving, increased power, or a particular sound), and weigh that against regulatory requirements and the vehicle’s existing condition.



  1. Get at least three written estimates from qualified shops to compare parts, labor rates, and timelines.

  2. Ask for a breakdown of parts: OEM versus aftermarket, material, and warranty terms.

  3. Confirm whether any ECU tuning or dyno work is required and what that will cost.

  4. Check state emissions rules and whether the chosen parts are CARB-approved or compliant with local inspections.

  5. Factor in potential additional costs like rust repair, fastener replacement, or corrosion prevention.

  6. Obtain a written warranty on installed components and a post-install inspection to ensure there are no leaks or fitment issues.


By planning carefully, you can optimize for both performance and value while staying within your budget.


Summary


Changing an exhaust can be inexpensive or expensive, depending on what you choose to modify and how your vehicle is configured. Simple muffler work is usually affordable, while catalytic converters, full cat-back systems, or high-performance upgrades can push costs into the thousands. Factor in parts quality, labor rates, emissions compliance, and warranty implications. With careful planning and multiple quotes, you can find a solution that meets your goals without overspending.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.