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Muffler, Exhaust and Catalytic Converter Repair in Gallup, NM

Loud roar, rattling, a rotten-egg smell or failed emissions? Muffler, exhaust and catalytic converter repair in Gallup, NM at 827 N 9th Street.

July 15, 2026

It is right there in our name: American Muffler & Towing. Muffler and exhaust work in Gallup, NM is our specialty, and it has been since 2012. If your ride has gotten loud, started rattling, or thrown a warning light, the crew at our shop at 827 N 9th Street can figure out what is going on and make it right.

Signs your exhaust needs attention

Your exhaust system does more than quiet things down. It routes dangerous gases away from you and helps your engine run clean. Here is when to get it looked at:

  • A loud roar that has gotten worse over time
  • Rattling under the car, especially over bumps
  • A rotten-egg smell you cannot shake
  • A drop in fuel economy you cannot explain
  • A failed emissions test

Any one of these is worth a look. Several together mean it is time to bring it in for muffler & exhaust service.

Why exhaust problems are worth catching early

A small leak or a loose hanger is a cheap fix. Ignore it, and that little rattle can turn into a broken pipe, a louder cabin, worse mileage, and a car that will not pass emissions. Catching it early almost always saves you money.

Catalytic converter theft and replacement

Catalytic converter theft has become common just about everywhere, and Gallup is no exception. Thieves can cut one out in minutes, and you will know it the moment you start the engine — it will be shockingly loud.

If yours has been stolen or has simply failed with age, we handle catalytic converter replacement. Bring it by and we will give you a straight, up-front quote before any work starts. No surprise fees. That is how we have always done it.

Custom exhaust and welds

Not every exhaust job is a repair. Sometimes you want something better than stock. We do custom exhaust work and welds, whether you are chasing a particular sound, replacing a rusted-through section, or building out a work truck.

Because we fabricate and weld in-house, we can often fix one section instead of forcing you into a whole new system. That is the honest way to do it, and it keeps more money in your pocket.

A healthy exhaust is not just about noise. It is about your fuel economy, your emissions, and the air inside your cab.

Why bring it to us

  • We are the muffler shop — it is literally our name
  • Honest, up-front quotes with no surprise fees
  • A real person answers every call
  • Family-owned in Gallup since 2012

While you are here, you can also browse our shop or ask about the tires and other auto repair we handle under one roof.

If your car is louder than it should be, smells off, or just failed emissions, do not wait for it to get worse. Call American Muffler & Towing at (505) 863-5990 or swing by 827 N 9th Street in Gallup, and we will get your exhaust sorted out.

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Frequently asked questions

My car suddenly got loud in Gallup. Does that mean the muffler or exhaust?

A sudden loud roar or rumble usually points to a rusted-through muffler, a cracked exhaust pipe, or a bad joint, all of which we diagnose and repair at 827 N 9th Street. We handle muffler and exhaust work directly, so bring it in Monday through Saturday, 9am to 5pm.

Can American Muffler & Towing replace a catalytic converter?

Yes, catalytic converter repair and replacement is one of our core exhaust services at our Gallup shop. Bring the vehicle by and we'll inspect it, then quote the fix up front so there are no surprise fees.

Do you do custom exhaust welding, or just bolt-on parts?

We do custom exhaust welds in-house, which lets us repair or fabricate sections instead of forcing a full bolt-on replacement. To get a look and an up-front quote, call us at (505) 863-5990 or stop by the shop.

How much will exhaust work cost in Gallup?

Every exhaust job is quoted up front once we see the vehicle, because the price depends on the parts, the extent of the rust or damage, and whether it needs welding. There are never surprise fees, and a real person will walk you through the quote before any work begins.

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