607 West 9th Street, San Bernardino

Emission Test for One or Two Vehicles at Yeyo's Smog & Tire (Up to 52% Off)

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Extra 25% off, up to $50
Promo Code SAVE. Ends 5/24.


Technicians check if the exhaust emission does not exceed the allowed norm and provide emission testing certificates

Customer Reviews

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All reviews are from people who have redeemed deals with this merchant. Review requests are sent by email to customers who purchased the deal.
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7 ratings3 reviews
Rating of 5 out of 5 stars
April 22, 2022
You do have to pay for certificate. But was quick and easy. In and out and less then 20 minutes.
8 ratings6 reviews
Rating of 5 out of 5 stars
April 19, 2022
Very friendly and quick service. Definitely recommend the merchant to others
12 ratings6 reviews
Rating of 3 out of 5 stars
September 13, 2021
was sent to another location.
4 ratings1 reviews
Rating of 1 out of 5 stars
July 31, 2021
I never used this but it says I did. I went to the shop because They didn’t answer the phone to schedule an appt - the place was a mess with cars all over the place. It appeared that there was a line because cars were backed up to the street so I jumped in what I thought was the order. A workers came up to me upset that I was blocking the driveway - gave attitude I left & paid somewhere else!
2 ratings1 reviews
Rating of 5 out of 5 stars
June 6, 2021
The service was quick and easy
4 ratings2 reviews
Rating of 5 out of 5 stars
June 6, 2021
Smog test In and out within 15 min. on and early Sat. morning. Excellent customer service! Very affordable! Will definitely be visiting Yeyo's Smog & Tire shop again. Great place to get new and used affordable tires! Thanks Hector!
144 ratings77 reviews10 photos
Rating of 5 out of 5 stars
April 14, 2021
No problems. It took almost no time before the smog test was finished. Just be aware that this is one busy place so you have to maneuver a little to park in the right spot, and there’s another $10 charge for the printed certificate itself.
1 ratings1 reviews
Rating of 5 out of 5 stars
February 23, 2021
This was the quickest smog check I ever had. When I drove into the lot somebody greeted me immediately. Very friendly employee to perform the smog check. Friendly advice - the lot will be crowded (it's an auto repair lot) but if you're in the front of the line, you will be out of there in 15 minutes.
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About This Deal

Choice of:

  • Emission Test for One Vehicle
  • Emission Test for Two Vehicles

Catalytic Converters: Keeping Combustion Clean

Cleaner cars make for cleaner air. Learn how catalytic converters help with Groupon’s guide.

A car’s engine is a dirty place, and it produces even dirtier exhaust. Vapors exit the combustion chamber carrying a nasty trio of smog promoters: nitrogen oxides, hydrocarbons, and carbon monoxide. As these pollutants barrel through the exhaust manifold (the set of tubes that feeds exhaust from each cylinder into the exhaust pipe), there’s only one thing standing between them and the innocent air outside: the three-way catalytic converter.

Situated just before the muffler, the converter is home to honeycombed ceramic cores coated with some combination of platinum, rhodium, and palladium—three rare metals that interact with the main components of the pollutants. When exhaust enters, the metals trigger chemical reactions that heat the gasses and rearrange their molecules. Under their influence, nitrogen oxides splinter into pure oxygen and nitrogen, while hydrocarbons and carbon monoxide are oxidized into less-harmful carbon dioxide and simple water. Since their introduction during the 1975 model year, these unseen cleaners have made air more breathable and much tastier: the EPA estimates that cars built today are 98% cleaner than their counterparts from the 1960s.

Fine Print

Promotional value expires 360 days after purchase. Amount paid never expires. May be repurchased every 365 days. Limit 4 per person. Valid only for option purchased. Appointment required. $8.25 additional cost applies for vehicles that pass smog check and need certification. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Yeyo's Smog & Tire

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