Emission Test for One or Two Vehicles at Yeyo's Smog & Tire (Up to 57% Off)

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Sale Ends 1 day 15:33:41
Up to 57% Off

Customer Reviews

25 Ratings


Will R. ·
· Redeemed June 30, 2017
Everyone there was very friendly. They hooked me right up for the Smog test and got me going very quickly.


Clarissa S. · 1 reviews
· Redeemed 7 days ago
Andy, was quick to rotate my tires and change my oil. It usually takes an hour or so, but went here and I was surprised it was done already and he stated everything was done and nothing was wrong with my car, other than my back break pads need to be changed. Will definitely come back for an oil change. Happy with the service, and it was my first time going anywhere over here in the IE.


Christopher M. · 1 reviews
· Redeemed February 27, 2018
good service... was in and out in no time

What You'll Get

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.

The Fine Print

Promotional value expires 360 days after purchase. Amount paid never expires. May be repurchased every 180 days. Limit 2 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

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.