My car was brought here by Francis collision(dont go there). My Cadillac converter was stolen so they brought it here. Let me tell you this, when I received my car back. I had the check engine light on & the Cadillac converter was acting up. When I went under the car to inspect it was welded it really sloppy & badly done. When I informed Frances of the issues they gave me a bad attitude but because it was under their horrible warranty they told me who installed it. So I brought it to this muffler shop .when I informed them about the issues & that it could be a installation problem . the owner started yelling & attacking me telling me that theyre insulation is 100% guarantee & its my car not their problem . So I left, I informed my insurance of what the issues were. They told me just to take it to any body shop & they will pay for any cost to get it fixed so I took it to seven body shops . I found somebody that found what the issues were. Let me start with that the Cadillac converter was welded wrong I was told by three of them that it looked like a 15-year-old did it. but when I took it to the last body shop that actually fixed it .they informed me that it was installed wrong & all the sensors were installed wrong. At the end everything was fixed (except the Cadillac converter) But let me tell you this if you take your car here good luck , youre better off going to the deep Hood getting it fixed in somebodys garage.

I wasnt here specifically i went in back to the smog check place which was actually pretty good. $45 for my smog not sure how the varies in price compared to other places. the guy who did my smog was nice and polite.

My companys truck had the cat cut. Thankfully not all the way out. So the welded it back you really fast and I was in my way in no time. My company it very thankful for that as well.

Cal State Mufflers is the Worst place to get your car worked on . I went in for a minor weld on my exhaust. I have a brand new 2020 Tacoma , they didn’t even use a gas welder, they used a cheap electric welder . On top they didn’t remove my O2 sensor like they were supposed to and burned it. They left a big blob of welding steel and my exhaust was still leaking. Frank (the owner) admitted it was a terrible job, so he said he would fix it . I gave him a chance to fix it but still left a leak and said they weren’t going to replace the O2 sensor even though I showed him pictures to prove the O2 sensor wasn’t burnt when I took it in. When I went to pick up the truck Frank told his worker to give me a refund and to have me sign a paper saying they weren’t responsible for fixing my car anymore . They said they wanted to “wash their hands already”. I went in for a minor welding job but after they burned the 02 sensor it was going to cost way more money. Not only did I have to go through that hassle and waste a whole day of work , but they were refusing to give my truck back unless I took a refund . Of corse I didn’t take the refund and the cops forced Them to give me my keys . If you were considering taking your car in I really don’t recommend it . Cal State Muffler does trash work , if they mess your car up they take zero responsibility .

They treated me great and replaced my catalytic converter quickly. They also gave me tons of vital information and heat me in the loop. The only problem I have with them is they kept my catalytic converter and then when I can to pick it up they said they already scrapted it. So I asked if I could receive some of the profit from scraping it and he looked baffled and said was it worth anything? Yeah, cats are worth 200-400 dollars used because of the precious metals and sometimesmore! Thats why people are stealing them and it all over the news. Im pretty sure he was lying right to my face, but other then that they were absolutely amazing so just make sure you tell them you want to keep the cat so you dont lose the couple hundred for scraping it.

Called around asking about installing a Cat shield for my Toyota Prius since their Catalytic converters are being stolen frequently. Cal state installed the shield at a price that was better than all the other places I called, I went in and they treated me with amazing customer service. For being short staffed I was in and out. Highly recommended! Thank you Cal state for keeping my car safe!

Great business good price replaced my buddy car exhaust manifold. Was every fast service thank again big frank

Had my exhaust done and sounded awesome definitely going back for other repairs as well they are absolutely respectful and want to help to the fullest of their abilities

They tried to charge me $800 just for brakesAnd $325 for exhaust I think it’scause I’m a female and I was by myself I would not recommend 💯

Quick fast and honest what more can you ask for

Great customer service. It was a great experience. Awesome quality work. I definitely recommend this place. They did an EXCELLENT job on my muffler/exhaust. Thank you Cal-state Muffler.

Honestly it’s the single best experience I have had with an auto shop. Frank is very personable and helpful and seriously puts customers first!Definitely will be coming back!

Took my car for an exhuast replacement and after that my car has giving me nothing but problems took it back several times and all they kept doing was erasing the check engine light and replacing other stuff that were not fixing the issue. I also called several times and all I kept getting g was it’s not our fault by yet they kept erasing the the check engine light . Finally after trying to get them to fix what they had broken I took my car to the Nissan dealer which I should have in the first place and turns out cal state broke the exhaust sensor that’s connected on the exhaust manifold . Never again will I take my car there and I would not recommend anyone to . You will think your getting a good deal but your getting your self into a mess.

It was very busy today that I went but they was very courteous and checked on my cars quick as they could and did the repairs as quick as Ithey could

Exceptional service no wait luckily.

First place I went to because I had a muffler problem and it was the closest to me. Service is first come first serve and I had my whole cat-back exhaust replaced. It took about 1hr to get the job done and the exhaust sits straight and the welds are pretty good! No leaks. The price was reasonable. Id definitely go back for exhaust jobs and I highly recommend this place :]

Great service my mom was there in and out no problem brand new muffler less than an hour

Very friendly they did an awesome job. Fast and good quality work....

Frank and the guys there at Cal State to Mufflers really took care of my truck they do great quality work and really know how to make a customer happy. Thank you Cal State mufflers for such a great job

Had an emergency. I was first in line. They we nice and they got it done quickly and job was well done.

The short Mexican guy who seems to be in charge has a bad attitude. I have went there on 3 separate occasions to get quoted. Each time I mentioned that another shop could do it cheaper he got a condescending attitude with me instead of trying to pitch his shop as being better or why they charge more. The last time I went in to get a quote on a simple job he actually mocked me like a little kid. If I was inclined to put up with that kind of unprofessional attitude I might have actually had some work done and could have given a more thorough review. Learned my lesson and will never go back to cal state muffler again.

Good quick cheap smog job

Never go here they give astronomical quotes , 220 for muffler delete when most shops charge 120

Most dumb asss shop i ever went to hass attitude n knoes nothing bout car

Price was good, Great Job have taken 2 of my Z32 there Thanks guys ill be back.

Had a loud noise coming from my exhaust. They Tac welded my heat shield which fixed the problem. 30 minutes in and out, barely charged me anything.

Super fast service

My muffler came off, my resonator got damaged, and my exhaust pipes needed to be replaced. He gave me a discount and got my car back to me in an hour. I would go here again for exhaust or brake issues.