Exhaust and muffler repair in East Rutherford, NJ — leaks, catalytic converters, resonators and welding. Quieter, cleaner, legal for inspection.
Book Your AppointmentASE-certified mechanics working to US standards on every job.
Latest diagnostic technology for precise, first-time-right repairs.
Firm written estimates before work starts. No surprises.
OEM and OEM-spec parts backed by warranty.
Most jobs done same or next day.
We explain everything in plain language before touching the car.

Exhaust and muffler repair in New Jersey means finding and fixing the part of your vehicle's exhaust system that's leaking, rusted through, rattling, or making your car louder than it should be — from a small leak at a joint to a full muffler or catalytic converter replacement. At Three Brothers Auto Repair in East Rutherford, we handle exhaust repairs for drivers throughout Bergen County, using a lift and a real inspection of the whole exhaust system before we quote any work.
We're an independent, family-run, ASE-certified shop, so you're talking to the people actually doing the repair, not a call center. Our team checks the muffler, pipes, resonator, and catalytic converter, explains what condition each part is in, and gives you a straight answer on whether you need a patch, a section replaced, or a full exhaust service.
Most exhaust problems show up as a noise, a smell, or a dashboard light before they turn into a bigger repair. Use this table to get a sense of what's going on and how soon to get it looked at.
| Symptom you notice | Likely service | How urgent |
|---|---|---|
| Loud rumbling or roaring noise, especially at startup or acceleration | Muffler & exhaust repair | Soon — noise usually means a leak or hole that will get worse |
| Rattling or metal-on-metal sound underneath the car, especially over bumps | Muffler & exhaust repair | Soon — a loose bracket or hanger can cause the exhaust to drop or drag |
| Rotten egg smell or a check engine light along with reduced power | Muffler & exhaust repair (catalytic converter check) | Prompt — this often points to a failing catalytic converter |
| Visible rust, flaking, or a hole in the muffler or pipe underneath the car | Muffler & exhaust repair | Soon — rust spreads and a small leak becomes a bigger repair |
| Failed emission test | Muffler & exhaust repair (exhaust and catalytic converter inspection) | Prompt — needed before the vehicle can be re-registered |
| Noticeable drop in fuel efficiency with no other clear cause | Muffler & exhaust repair | Worth checking — a restricted or leaking exhaust can affect efficiency |
We start by putting the vehicle on a lift and inspecting the exhaust system from the engine back to the tailpipe, checking pipes, welds, hangers, the muffler, and the catalytic converter for rust, cracks, and leaks. This tells us exactly which section is causing the noise or the smell, instead of guessing.
Depending on what we find, a repair can be as simple as a weld or clamp at a leaking joint, or it may call for replacing a muffler or exhaust section. If the catalytic converter itself is failing, we'll explain what that means for your vehicle and for emissions before any part is ordered. Every repair uses parts suited to your make and model, and we back our work with a warranty.
Exhaust repair costs depend on where the problem is and how much of the system needs to be replaced. As a general guide, an exhaust leak weld or clamp repair typically runs about $120–$260, and replacing a muffler or resonator section typically runs about $180–$450. Catalytic converter or downpipe work varies enough by vehicle that we quote it by estimate after inspection. For more detail, see our price guide.
Drivers in East Rutherford and around Bergen County come to us because we're a reliable, independent shop that explains what's actually wrong before recommending a repair. We don't push a full exhaust system replacement when a leak weld or a single section will do the job.
Every exhaust and muffler repair we perform is backed by a warranty, and we're happy to walk you through the condition of your car's exhaust system in plain terms. If you want to schedule a look at your vehicle, contact us or call to set up an appointment.











Established by three brothers with over 20 years of combined experience, Three Brothers Auto Repair is a trusted community shop in East Rutherford, NJ. ASE-certified mechanics, written estimates, and straight talk.
About the shop