The staff very professional and friendly. The price was what I expected. Service was very quick…read moreand professional. I highly reccommend this place. Was even able to go next door and run my wife's car through the car wash without having to get back on McHenry Ave.

Wow! I can't say enough about my experience there today. Klein went above and beyond to help me…read morewith my Honda CRV. As a walk in, there was no wait time and my car passed with ease. Total price was $55 as reflected on their website. In today's world, where customer service is a lost art, it's refreshing to see a business where they actually care about their customers. I will definitely use them for my future needs and I highly recommend them.

He takes care of the Yelp friends, mild mannered and lets you know what you need to do to pass smog.read more

I've been here twice now. Both times were walk-ins. Both times were quick, efficient and easy. They…read morewere also very friendly. This is my go-to smog place from now on.

I recently went to get a smog check because my registration was due and required it. I previously…read moreasked other smog businesses if they work with Dmv and they said no. I appreciate that this business does give Dmv the notice for pass. All I had to do was go the following day to one of those kiosk that have DMV and got my registration right away. Also they do get busy so I recommend going there first thing in the morning I was in and out in less than 20 minutes. Also go on their website to get a $10 discount that helps.

Need to take my collectable car in for a SMOG, walked in sat down and in 30 minutes was done with…read morecertificate completed. I loved the way he treated me upon my arrival and it was a great experience. Thanks,

Service was super fast! I went first thing on a Saturday morning and the worker was so nice! Took…read moremaybe 15 mins for a smog check and I was out of there. $60 service.

In and out for the smog . Steve is a great guy and knowledgeable. He was a 5 stars++++…read morePrice is also great

Thanks for helping get my truck back on the road Theo and Tony are the best here in town fast quick…read morereliable service with no hidden fees 10/10. This ol truck is on the road thanks to you.

I have been using Smog Dynamic for years. They are very professional, polite, and trustworthy…read more They have always been very helpful, and I send everyone I know there. I personally smog all my cars there and all my family does as well. Try them out, you won't be disappointed. I drive past many smog shops to get to them. They are the ones I trust, and that means everything to me. Pro tip: make sure to pay attention to go to the correct smog shop being there is 2 in the same location. Tell them Nasser sent you. I tell everyone to tell them that, haha.

I decided to go here for a smog check without an appointment and got right in. Abraham was the…read morebest! He welcomed me and offered me cold water while I'll waited. Only took 15-minutes. I've come here in the past and will continue to do so. I highly recommend!

Great place to take your vehicle to get a smog very helpful. The gentleman works well with his…read morecustomer

San was very helpful and went above and beyond for my AC check and replacement. Was beyond fair and…read morewas recommended to him and his business so A+ !!!

This place is very helpful and honest. My car couldn't pass smog so the owner drove it over to a…read moremuffler mechanic to get an estimate for me. I felt that was going above and beyond. I will return here for other car issues in the future.

Today I was completely blown away by the level of service that I received from SpeeDee Oil Change…read more I was greeted by the nicest gentleman, Mike, to later find out that he is the owner of the location. He immediately made me feel super confident about the service that was going to be performed on my Audi Q7. His entire team was very attentive and gave me a feeling that every employee here had a sense of pride to be working with Mike and his team. They even were able to reset my annoying inspection required light that I thought only the dealership could reset. They completed my service and had me back on the road in a very timely manner. The value of coming here for a routine oil change compared to going to a dealership showed me that I have been throwing money away in the past. Not to mention the amount of time a dealership takes to make a simple oil change seem like an engine overhaul. This is my family's go to spot for a premium oil change with the confidence that Mike and his team will take care of our vehicles like it is one of their own!

sent by BAR to help with my smog. refused to replace my oxygen sensors . I asked if they did a…read morediagnostic on it. He said no because they would need to charge me for it when it says right on the Bar assistant form that the diagnostic is paid for through them. told me to drive my car another 500 miles they were no help to me at all. The mechanic was rude. They didn't even pull my car into the bay to inspect. I had to take it to a mechanic that was not on the BAR list to replace my oxygen sensors. Not happy at all.

High price for oil change. Oil change professionals were curtious and helpful. Honestly it was a…read morebit loud coming from the staff...But I guess this how they run their bussines. Peace

Walked in at 2:45. There was a woman coming from behind the desk looking hurried and frustrated. I…read moreasked for a smog. She said I'm doing my last car, we close at 3. I said oh, Yelp says you close at 4. She turned, walked away saying yeah, well Yelp is wrong. and said nothing more. Just left me standing there. Very rude and unprofessional. I get in my car, look up another smog shop, drove further down McHenry to McHenry Smog Center. Customer service was exceptional!!

I arrived with my truck and was greeted right away by the manager. He got my service started…read moreimmediately, and I was in and out quickly. They also let me know what services will be due soon, which I really appreciated since I hadn't brought this vehicle there in years. Everyone was friendly and efficient. My only small suggestion would be to keep the friendliness genuine and not feel forced -- but overall, it was a great experience. They even saved me about $40, which I'm very thankful for. I will definitely be back and plan to bring my other vehicle as well. I would recommend this place for any of the services they offer.

Helpful, not entirely knowledgeable on cars but helpful. But good communication and helpfulness.read more