Muffler & Exhaust Repair at Denny's Automotive & Muffler, Cedar Rapids, IA
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Muffler & Exhaust Repair in Cedar Rapids
Loud muffler? Rattle under the car? Exhaust fumes or a sudden drop in fuel economy?
Denny’s Automotive & Muffler Center has been repairing and replacing mufflers and exhaust systems for Eastern Iowa drivers since 1974 — and we’ll show you exactly what’s wrong before you spend a dollar.
- Free exhaust inspection — we put it on the lift and show you
- Custom pipe bending in-house, so we repair instead of replacing whole systems where we can
- ASE-certified technicians and a clear written estimate before any work begins
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- Most muffler and exhaust repairs completed the same day
Ready to Get Back on the Road?
Contact us today about Fleet Services for your business.
Signs Your Muffler or Exhaust Needs Repair
- A loud roar, rumble or droning that got worse over time
- Rattling or scraping from under the vehicle over bumps
- A noticeable drop in gas mileage
- Exhaust smell inside the car — have this checked immediately
- Check-engine light (often a failing oxygen sensor or catalytic converter)
- Visible rust, soot or holes on the muffler, pipes or tailpipe
- Vibration through the steering wheel or floor at idle
What We Repair
We service the complete exhaust system on domestic and import cars, trucks, vans and light fleet vehicles:
- Muffler repair and replacement
- Exhaust pipe, tailpipe and flex-pipe repair
- Custom pipe bending and welding — no waiting on special-order parts
- Resonator repair and replacement
- Catalytic converter replacement and shielding
- Oxygen sensor diagnosis and replacement
- Exhaust manifold and gasket leaks
- Hanger, clamp and bracket repair
- Performance and custom exhaust builds (see our Custom Exhaust page)
Muffler & Exhaust Repair FAQs
It depends on what failed and whether the pipe can be repaired or has to be replaced. Bring it in for a free inspection and you’ll get a written estimate before any work begins.
Very often just the failed section. We bend and weld pipe in-house, so we can replace a single section instead of an entire system when the rest of it is sound.
Most muffler and exhaust repairs are done the same day. We’ll give you an accurate time estimate after the inspection.
It can be. A leak ahead of the cabin can let exhaust gases — including carbon monoxide — inside the vehicle. If you smell exhaust while driving, get it inspected right away.
Yes. See our Fleet Services page for business accounts.
Get Your Free Exhaust Inspection
Denny’s Automotive & Muffler Center — 2011 16th Ave SW, Cedar Rapids, IA 52404
Monday–Friday, 8:00 AM – 5:00 PM · 319-363-5245