Boerne, Kendall County
Best Exhaust & Catalytic Converter Repair in Boerne, Texas
Quick answer
For fast, honest exhaust & catalytic converter repair in Boerne, call 469-402-3923. Typical cost: $150 – $450 muffler · $900 – $2,500 catalytic converter. Our ASE-certified technicians offer same-day appointments, written estimates, and a 12-month / 12,000-mile warranty — open 8 AM to 11:45 PM daily.
Same-day appointments, typically within 2–4 hours
Loud exhaust, rattles, failed emissions, and catalytic converter replacement. The inspection focuses on exhaust leak inspection, muffler and pipe replacement, flex pipe and hanger repair. For drivers in Boerne, including Main Street and Cibolo Nature Center and Fair Oaks Ranch, note when the symptom starts and whether it changes during your usual journey.
Exhaust, Muffler & Catalytic Converter Repair for Boerne drivers
A loud exhaust, rotten-egg smell, rattling under the car, or a P0420 code usually means an exhaust leak or failing catalytic converter. We repair and replace mufflers, pipes, flex joints, O2 sensors, and catalytic converters — including theft replacements.
Car Auto Repairs of Texas serves Boerne drivers from Main Street, Cibolo Nature Center, Fair Oaks Ranch and across ZIP codes 78006, 78015. Whether you drive a commuter sedan, a family SUV, or a work truck for your business, we handle exhaust & catalytic converter repair for personal and fleet vehicles throughout San Antonio & Hill Country.
Inspection in focus

Computer diagnostics
A fault code identifies a system to investigate, not necessarily a part to replace.

Battery testing
Battery testing is one part of investigating starting and charging concerns.

Hands-on inspection
A hands-on inspection helps connect the driver's symptoms with the vehicle's condition.
Illustrative images, not customer repair photographs.
What's included in our Boerne exhaust & catalytic converter repair
- Exhaust leak inspection
- Muffler and pipe replacement
- Flex pipe and hanger repair
- Oxygen sensor replacement
- Catalytic converter replacement (EPA-compliant)
Exhaust & Catalytic Converter Repair cost in Boerne, TX
$150 – $450 muffler · $900 – $2,500 catalytic converter
Prices vary by year, make, and model. You'll get a written estimate before any work starts.
Exhaust & Catalytic Converter Repair in Boerne: common questions
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