I called A-1 Muffler Express looking to change my OEM mufflers and Coil overs. Spoke with Yen and he was super helpful with his recommendations and availability. He did warn me that it could be a little wait due to high volume of clients. I ended up going with a muffler delete and replaced my suspension with coil overs. Yen took care of the muffler delete and Lee and two other very helpful gentlemen took care of my coil overs. I have to say I am very satisfied with the quality of work for the value. They quoted me way under anyone else that I had called prior to going with them. I will recommend A-1 Muffler Express to all of my friends and family. They all make you feel that you're part of the family. They offered me coffee and cold water while I waited for my car to be done. One thing to remember, they are experts in mufflers, exhaust systems, and not any other type of work. But it never hurts to ask if they can do it for you! read more

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Had to show this business some love as they know exactly what they're doing and very reasonable pricing as well! They are always busy (which explains their work quality and prices. You will NOT be disappointed. Very kind folks and tell you exactly what they're doing. Will definitely return for more work as needed and referre family and friends here. Thank you guys again for the work on my vehicle! 05 BMW 330I read more

Great place to come to.. replaced my hpipe with an xpipe.. very helpful.. car sounds great read more

A-1 Muffler Express - Camaro - Auto Repair Near Me - Santa Fe Springs, California

Quick fast and reasonable pricing. Catalytic converter done in a hour. Customer service is good and the response on yelp is Fast!

Huge thank you to Ly, Yen, Jose, and Miguel at A-1 Muffler Express for doing an incredible muffler delete on my Porsche Macan S! The craftsmanship, attention to detail, and timing were absolutely superb. The 4-man team got started early in the morning and wasted no time getting the job done, efficiently and flawlessly. The sound came out perfectly tuned, exactly what I was hoping for. I highly recommend this shop to anyone looking for affordable quality exhaust work. They're trustworthy, genuine mechanics who truly know their craft. Couldn't be happier with the result! read more

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Phenomenal service, straight forward, had got my catalytic converter chopped and took it in and luckily it was still hanging on and they had just changed for a weld patch up and reset the computer. Smooth sailing once again. Thanks to Jose and Lee, I am able to pass my smog check and continue to drive with less stress. Thank you and yeah it's a bit narrow getting in but it is genuine for sure read more

Great shop. Fast service and price is better than what I could find anywhere else. I refer all my friends here.

The best shop for exhaust, and other mechanical repairs and installations! They gave me reasonable price for all the service provided, and the quality of there work last long! read more

The owner of this shop was very responsive on Yelp and helpful. I really, really, really did my research before choosing where to go and he offered me the best price for the services needed. Upon arriving at the shop, he had my car lifted, showed and explained to me in detail what needed to be done and why. I thoroughly appreciated being well taken care of and his quoting and honoring the estimate he gave me that was significantly less than every other shop I contacted. read more

Need to get my biennial smog and the P0705 error code popped up with my check engine light. Which means I can't pass a smog test until I can clear the code. The code pretty much means I need to replace my catalytic converter LOL. Apparently my car has two catalytic converters. I called around and some places were trying to tell me that both needed to be replaced. Found A-1 on yelp and I'm so thankful that I listened to the great reviews. Yen was responsive and told me that with the P0705 code, only the front cat would need to be replaced but he'd check the back just in case. Luckily I only needed the front and he quoted me a great price! Super affordable and there's couches you can sit and wait while they work on your car. I was in and out in less than an hour. Car feels great, and runs much smoother. Definitely recommend Yen and A-1 Muffler Express. read more

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Great service, very knowledgeable. They provide the best suggestions and recommendations on whichever muffler and setups you are considering. The guys here do a quality and reputable job, kind and helpful. read more

Great service, took care of my broken bolts on the exhaust manifold in a timely manner. Recommend to all read more

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Mr. Yen is awesome! I had a catalytic issue and even with a cat shield and security bolts in place, he took care of everything quickly and professionally. The work was done with great attention to detail. Pricing was transparent and very reasonable. Highly recommend this shop! read more

Excellent service, highly professional. Yan is a master at his craft. I brought my Camaro in for some muffler work today and he had me in and out of the shop quickly. His pricing is very fair and the quality of work is top notch. Very thankful for his help with my vehicle today. I highly recommend him to all my friends and family. Thanks, Yan!! read more

A-1 Muffler Express - Auto Repair Near Me - Santa Fe Springs, California

Very nice and quick with my muffler delete on my 650i Bmw 06'! It sounded very nice and the service was quick and straightforward:)

Came in to get some work done on my muffler, and I'm really glad I chose this shop. The owner was super communicative from the start--he explained everything clearly and was able to help me out. Service was fast and good quality. You can tell they know what they're doing--very professional and efficient. The shop was clean, organized, and you could see they take pride in their work. Pricing was fair and transparent, no surprises. Overall, this is exactly the kind of place you want to go to for any exhaust work: trustworthy, skilled, and easy to work with. Highly recommend if you're looking for quality work and great customer service. I really appreciate their help read more

Service was good! Cost I was quoted via yelp was the same when I got there! Everyone was kind!

What an incredible experience and performance! From a modest, little 2 bay garage, the absolutely miraculous job they all do! From Jose and Miguel, stellar artisans of metal work and exhaust systems to the Owners, Yen and Ly, the value, performance, accuracy, thoroughness and customer service are above stellar! Extremely responsive and accurate to requests for information, estimate and performance time. True problem solvers and an incredible value for the work done, two new catalytic converters, CARB compliant and engine family compliant in less than an hour on a 2004 Toyota Land Cruiser! Several thousand dollars less than other places and the dealer, would absolutely recommend without hesitation and will be back if needed! Don't be surprised by the initial appearance, and never judge a book by its cover! read more

Good guys, great service. If you need a muffler installed there is no other place I would go. Fair pricing, fast service, A-1 quality.

So happy with my experience here! I had a quick thorough experience and did a muffler delete on my stinger. Love the way it sounds and such a good affordable price! Diffidently will return because of the most reliable experience :) read more

I contacted the owner of the shop through Yelp and he was very helpful and fast with his replies, giving me a price estimate for the install I needed. I was trying to find a shop to cut out my stock muffler and install an aftermarket one, and A-1 Muffler Express gave me the best deal out of all the shops I contacted. I arrived at opening time without an appointment (though I would contact ahead of time and see if one is needed) and had the install done in around an hour. Stellar and affordable service, and the exhaust sounds great. Recommending this shop to all my car buddies for exhaust-related installs. read more

A-1 Muffler Express - Auto Repair Near Me - Santa Fe Springs, California

When an auto expert suggests a spot - you listen. And I'm glad I did. My husbands 2004 Toyota Tacoma wasn't passing smog...don't even get me started on that situation, I'll throw this laptop at a wall. Anyway, my dad has a guy he always goes to with smog related issues and when he saw what the readings said, he told me to call Yen. He said Yen is the most honest and cheapest but that he's a straight shooter who knows his stuff - I knew I was going to be ok. Sure enough, I gave Yen a call, he told me over the phone what to expect and when I arrived he explained everything to me so I knew what we were doing and why. He replaced the Catalytic Converter (in under an hour), told me what I needed to do to get it reset, and said I should come back to check with him before I tried to smog it. When I returned, he realized that part of the issue was that my sensor was dead. He told me what to get and sent me to an auto parts store. When I returned he installed it and sent me on my way. He also didn't charge me for the labor of doing that - which is so above and beyond that I was floored. Long story short - we passed smog. And now, I know where do go for any muffler or exhaust needs. This place is amazing and helpful. read more

Very good price, nice people will come again, i got a cat installed and they did it quick. Will come back again soon read more

A-1 Muffler Express - Cat install - Auto Repair Near Me - Santa Fe Springs, California

Recently had my catalytic converter stolen and Yan and his team did an excellent job replacing it. Yan took the time to show me the parts he would be using and explained every step. Price was better than other places I was quoted and took less than an hour. Thank you to Yan and his team. read more

This shop is VERY HONEST. They give you the info you need to get the job done right! At reasonable cost. None of us want to spend$ on repairs but who does? After a few different shops this is BY FAR BEST QUALITY WORK & Price. read more

A-1 Muffler took great care of my car and installed my axle back on my 21 330i. I was in and out in just about an hour and that was with waiting a little bit while they finished up another customer which was fast. They even went above and beyond with relocating the exhaust valve as the new one didn't need it. I will definitely be bringing any other cars I have back here! They were the best price out of every single shop I contacted as well. Thank you guys! read more

A-1 Muffler Express - Axleback install - Auto Repair Near Me - Santa Fe Springs, California

Great experience with this muffler shop. They responded quickly on Yelp, were friendly and professional while installing my cat-back exhaust, and the pricing was the best - they gave me the best quote compared to other shops in the area. The work was done fast and I'm really happy with the quality. Highly recommend. read more

A-1 Muffler Express - Cat-back exhaust installation - Auto Repair Near Me - Santa Fe Springs, California

Came in on a Friday morning to get a muffler swap on my Nissan Xterra, Yan knocked out the job in less than an hour and his service and knowledge is top tier. This is the 2nd vehicle I have brought to his shop in the last 2 years and am satisfied with his work. read more

A-1 Muffler Express - Auto Repair Near Me - Santa Fe Springs, California

I contacted Yan via yelp after reading the excellent reviews and got on the schedule to get an ISR exhaust installed on my G35. The guys got the install done very quickly and efficiently for a great price. Their attention to detail was evident when they noticed that the exhaust tip had been damaged in transit (I never opened the box after receipt; lesson learned). They went above and beyond by fixing the damage w/o charging me extra! I will definitely be bringing my vehicles here going forward, and recommend that folks do the same. read more

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Amazing work, very honest, affordable , I was recommended by a friend and I am very satisfied.

Needed an exhaust repair because it was making a very loud noise. My son had hit a curb. Went to one muffler shop before this one and they said I needed a new exhaust manifold. Really, wow. Then I got second opinion here at A-1 and they replaced a gasket and flex pipe only. These guys know what they're doing and price was fair. read more

First review here but I have been here in the past. Great service. Honest and much more reasonable than other shops in the area.

The most honest and reliable repair man I have ever met. After taking my truck to numerous places in Whittier he never nickled/dimed me. He fixed the problem. God bless you. Whittier shops that let me down: johns, auto pros, daniels, chevy PH, and a few others misdiagnosed issue and are total ripoffs. read more

Needed some exhaust work done on my Shelby GT500 and these guys were perfect! Luckily I got here around 930am and there was no wait. Job took less than an hour and I couldn't be happier! They are pretty wuick at responding on yelp which was a big plus. Good to know I can take my Shelby somewhere I can trust! 5/5 read more

A-1 Muffler Express - Auto Repair Near Me - Santa Fe Springs, California

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I would highly recommend this place to anyone needing exhaust type repairs. The place is very reasonably priced and the service is quick, but also done properly. I called and spoke with Yen, the owner and he gave me an estimate to connect new dual exhaust piping and Flow master mufflers to a 73 Chevy C-10 pick up, 350 engine. The job was explained well and completed within a few hours after I dropped it off. I can't say enough, the location and first look of the shop is deceiving, but trust me they know that they are doing. I dealt with Lee, who was great with communicating with me and making sure everything I asked for was done. Here's a few pics of the job done. read more

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Its my second time doing service with A-1 Muffler Express. The first time was about 7 months ago when I took my Honda fit to repair a muffler delete that another shop did a lousy job on. A-1 re-did it and made it look cleaner. This time I took my corolla in for an exhaust install and it took less then 15 mins. The price is fair he wont rip you off on installation. And they do a very good job. I will bring my car here again even if I live in Los Angeles. read more

A-1 Muffler Express - Muffler - Auto Repair Near Me - Santa Fe Springs, California

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I had a great experience here. First come first serve basis so I had a bit of a wait. But they did a great job & helped me on a few things that I had questions on. I am a female so they didn't try to sell me on things I didn't need. 10/10 recommend. read more

Quality guys they were able to help me find and install my cat fast and were the cheapest deal out of all my quotes would recommend again

Yan is the man! Knowledgeable, very transparent, honest , and his prices are the best that I could find. He changed both my cctalytics in less than an hour. read more

My catalytic converter was stolen. I had it replaced, however, I wanted a shield/guard to discourage this from happening again. So I called this shop for a quote . They didn't have any that would fit at the time, but they offer installation of your own. They were they cheapest rate I had found, the service was great and they installed my guard within 30 minutes. I definitely recommend them for this type of work and will take my vehicles there for any muffler needs. Yen was personable and courteous. read more

A-1 Muffler Express - Aftermarket catalytic converter guard. The shop installed this for under $100 - Auto Repair Near Me - Santa Fe Springs, California

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