Ben M.
12/10/2025
Over the last few years, I've been taking my cars to K1 smog and have nothing but great things to say. The owner, DJ, is a car enthusiast and treats my older cars with care and respect. I always...
K1 Smog
Closed
(157)
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24087 Mission Blvd Ste B
Hayward, CA 94544
K1 Smog is a Star Certified Smog Station located in Hayward, California, known for its fast and efficient service. Independently owned and operated, the company specializes in a range of smog check services, including out-of-state tests, diesel smog checks, and gross polluter certifications.
With a commitment to customer satisfaction, K1 Smog prides itself on its prompt service, ensuring that clients are in and out in a timely manner. The company has received positive feedback for its knowledgeable and friendly staff, as well as competitive pricing on smog checks.
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Reviews
5.0(157)
Sam V.
12/8/2025
Came in with no appointment. Service completed in less than 20minutes after a brief wait.
Miguel V.
12/13/2025
Went there for a smog test for my car to renew my registration. Process was quick and affordable.
Vrushali N.
11/27/2024
Car is now 8 years old and needed its first smog check. My car guy recommended K1 smog. So I did what I always do, looked it up on Yelp. It's no fluke when a place has 5 stars out of 135...
Sue V.
11/13/2025
I went around 3:00 in the afternoon. The service was great. The guys were friendly and fast. There was one car in front of me. And I was in and out of there in about 25 minutes. I will definitely...
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