Quick and honest little smog shop, it's past the car washing area in the back. I was a little…read moreconfused at first. But they were fast and decently priced. Cheaper than most, considering I wasn't trying to drive 17min for 38$ I paid 58$ for the convenience since it was in my way home and I had other errands to run. Update: the other errands to run were an oil change but connected to this place next door they do oil changes. Synthetic blend was their cheapest they don't do regular, but it was the same price as Lenny dykstras and saved me the trip. Although it didn't come with a free car wash like Lenny's, still very convenient.

Returning customer. I was recommended to this SMOG specialty shop in Norco and it's time to pay it…read moreforward. Honest, fast, no hassle service from Ernesto at reasonable cost. Pleasure to reco solid local small business owner. Returning customer. I was recommended to this SMOG specialty shop in Norco and it's time to pay it forward. Honest, fast, no hassle service from Ernesto at reasonable cost. Pleasure to reco solid local small business owner.

The wait was long but that was ok, it just means everyone else likes coming here too. They are…read moreefficient and friendly. It's my second time here and I'll keep coming back.

Today, I called over 10 star smog check businesses, most of which could not use their machine for…read moremy older truck. If they were able to, the cost was higher than I expected. Finally, I called M & T Smog, and they were friendly, with the best price in a 10-mile radius. They took me as a walk-in, and the service was efficient! It took about 25 minutes, once completed, I paid and received my certificate. This will be the only place that I go to for future smog checks and I highly recommend this business to anyone!

Got squeezed in last minute with zero hassle, and the whole smog check was done in like 10 minutes…read moreflat. Super fast and efficient--definitely saved me a ton of time and stress. Highly recommend if you need a quick, no-fuss smog test!

2006 Pilot. Did Smog on June Wednesday 3pm. Done in less than 20 minutes. Show the coupon online…read moreto get $10 off, $50 total.

Went to do my smog check on a Saturday Afternoon it was quick and cost effective. Their technician…read moreIzzy was very helpful and knowledge. Highly recommend!

From the owner: At Smog M3 Smog Check, we combine speed, transparency, and unbeatable pricing to give you the best…read moresmog check experience in Jurupa Valley. We specialize in test-only smog checks for all vehicles — gas, diesel, and hybrid — with no hidden fees and no unnecessary repairs. What sets us apart: “Pass or Free Retest” guarantee — risk-free for you. We beat local smog prices — bring us a competitor’s price, and we’ll beat it. Fast in-and-out service — most smogs done in under 20 minutes. Modern, clean facility with professional equipment. Convenient location at 8584 Limonite Ave, Jurupa Valley, CA — with easy parking and friendly staff. Open Monday through Saturday, 9AM–5PM for your convenience. Choose Smog M3 for honest, affordable, and hassle-free service that keeps you moving — legally and safely.

I've brought my car to D&S Auto several times, and each experience has been consistently excellent…read more Their team provides outstanding customer service--always professional, transparent, and willing to take the time to explain the work being done. The pricing has been very competitive compared to other shops, and I've never felt pressured into unnecessary repairs. Most importantly, the quality of their work has been flawless. Every repair and service has been completed correctly the first time, and my vehicle has always run smoothly afterward. It's not easy to find a shop you can trust, but D&S Auto has earned that trust with me. I highly recommend them to anyone looking for reliable repairs, routine maintenance, and honest service.

Bro can't be bothered to open his own business on time…read more Made an appointment that was confirmed by the business and all for them to flake on me.

This is a great choice, just go! very fair and very quick. I would choose them over anyone else.read more

Awesome customer service. The workers def know what they're doing. I wouldn't take my cars anywhere…read moreelse but here!

Thanks to Leo for the great customer service! I let him know I was in a bit of a hurry due to work…read moreand he reassured me it would be fast. He definitely didn't lie about that! He explained everything to me really well. Very professional. Overall I recommend to get your smog test here! The price is affordable and reasonable unlike other places that are charging way more.

This place is great!! Leo was friendly and smogged my truck quickly! Will definitely come back for…read moreany other vehicles I need smogged.

Went early on a Friday morning to get our Jeep a smog check and I'm so glad I did. Mission Smog…read moreCheck had the most positive reviews, so I decided to trust my fellow Yelpers and they did not steer me wrong. Joey was friendly and a knowledgeable technician who assisted us. He explained the process clearly, answered all our questions and helped us feel confident every step of the way. The service was efficient and thorough and we were in and out in 15-20 minutes tops! What impressed me most was how smoothly everything went the next day. I was able to renew our tags online, and the DMV had already been notified by Mission Smog Check. It's clear they take care of their customers from start to finish.

Joey was very helpful. Went in for a smog check it's first come first serve, so we waited a bit…read more But worth the wait. Services didn't take long. Wasn't expensive also worth the price.

This place raised some serious red flags for me. I was the third person in line whose car didn't…read morepass, and the two cars ahead of me were also told they failed their smog tests. Seeing three vehicles in a row fail makes you start questioning what's really going on. I understand CARB regulations can be strict, but the process here feels questionable. You still have to pay the full test fee, then come back and pay again (or pay a reduced retest fee) after supposedly fixing the issue. When multiple customers are being told they failed back-to-back, it starts to feel less like coincidence and more like a pattern. I'm not saying every failure is wrong, but based on my experience and what I saw with the other customers ahead of me, I'd strongly recommend getting a second opinion before spending your money here.

Had a great experience here. I looked at there reviews , there are individuals who will speak…read morenegative on shop trying to make it , some individuals will have a bad experience, For me I had a great experience, not to mention I called last minute just before closing time , and they waited for me to Smog my truck ...I was very pleased with the fast experience and fair pricing considering I had drive a big truck and it's hard for most to operate it in tight spaces, This crew made IT happen. Thanks , Definitely my go to now...

I first went to GST two years ago. This year I had a check engine light and it kept me from…read morepassing, Two weeks later and having my car serviced by Tyler Panse my car runs like new ! I was lucky to pull up and get cleared and stopped @AAA to get my Tags for the year .

I've tried contacting this location over a dozen times throughout the day and no one ever answers…read morethe damn phone and their voicemail is not setup... I had questions about their smog check but apparently I'll never find out and they will never see me either unless I can confirm things before driving out of my way to this location.