About M&N Smog and Muffler

M&N Smog and Muffler provides expert and trustworthy service with fair prices. They prioritize getting you back on the road with necessary repairs only, no upselling or hidden fees. Expect a speedy process and friendly service at this small shop with big expertise, perfect for busy days with their fast turn-around time.

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Reviews for M&N Smog and Muffler

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Jan 2026
Mike and his team are awesome! Super friendly, honest, and quick service. I came in for a smog check and they had me in and out in no time. Prices are fair and you can tell they really care about their customers. Definitely recommend M&N Smog and Muffler to anyone in the Riverside area!
Nov 2025
Great fast professional service had a new catalytic converter put on they gave me a fair price and did an excellent job the welds look beautiful. Plus they added an extra hanger to hold it in place better. I’ll be back
Two weeks later I came back to get my vehicle smog instead of smogging my vehicle and making me pay for a failure Mike let me know it would not pass. He looked it over and told me exactly what the problem was. I went picked up the part put it on came back the next day and my car passed. That showed me M&M’s honesty and integrity. I really appreciate a honest top mechanic Mike
Nov 2023
Had a problem with broken clips and damaged engine splash shield. Mike took my car in and on the spot "jerry-rigged" a solution to put me back on the road. Well done! Grateful for the care and service!