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    7 Day Muffler & Auto Repair

    4.8 (85 reviews)
    Closed 8:00 am - 4:00 pm

    Get pricing

    Response time

    3 hours

    Response rate

    100%

    Services - 7 Day Muffler & Auto Repair

    Auto battery or electrical system repair

    Auto exhaust repair

    Routine automotive maintenance

    7 Day Muffler & Auto Repair Photos

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    Recommended Reviews - 7 Day Muffler & Auto Repair

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    Reviews With Photos

    Definitely recommend this shop. The guys started work on my car immediately and were real fair on the price (I had gotten some ridiculous quotes from other shops already). I'll pay them a visit again with my wife's car soon.

    Everything welded in
    Kathy T.

    Thank you Raffi and your team! Very friendly guys who know what they're doing professionally. They were able to install my X pipe on my Audi B8.5. I called them for an estimated quote. They double checked my engine sound and made sure it was good to go. Great quality and service overall!

    Raffi and his team helped remove, installed and welded a new catalytic converter on my Element in less than 30 minutes!  Thanks guys!

    Raffi is the man! I needed to get a new catalytic converter installed on my Element and did a bit of research locally and found these guys. I called them up and they gave me a very reasonable quote which they honored in person, they were able to help me right away and got me in and out in less than 30 minutes! They are upfront, friendly and do great work, in addition they are a family owned business that has been around for 38 years. I'm going to refer my friends and family to them for all their exhaust and car repair needs. Thank you again, don't hesitate to reach out to them and help support a local family business!

    2023 X3 M40i Resonator delete
    Albert M.

    Raffi was amazing! Gave me a super fair price and did my resonator delete super quick. He was very commutative and I can't say anything but good things about this place! Honest and quick work

    Resonator delete
    Jarell C.

    Decided on the fly that I wanted to get a resonator delete done on my car one morning so I opened Yelp to find a muffler shop. 7 day was one of the first results so I gave them a call to ask about pricing and scheduling. They gave me their flat rate for resonator delete, which was a good price for their work, and told me they had time for me to come by. Arrived at the shop and the guys wasted no time getting my car on the lift. Once it was in the air, they pointed out my resonators and discussed options and explained the differences it would make from their experienced opinions. Once I decided on which resonator to delete, they got right to cutting and welding, and the job was done quickly. I barely had time to scroll on Instagram. I'm happy with how my resonator delete sounds with my current axle back setup. But I'll likely be back soon for the next modification. I highly recommend 7 Day for their friendly service, fast and quality work, and fair pricing.

    Shop.
    Nicholas G.

    I was in search of a shop open on Saturday and came across this place. I came here on two different occasions -- first to get an exhaust system installed on my girlfriend's GR Supra and the second time to get an exhaust system installed on my Civic Type-R. Both installs were done quickly, in an hour or less. Though the work was done fast they were very thorough and careful with both vehicles, ensuring everything was done right the first time. They even cut our original exhaust systems in half and marked the meeting points in case we needed to put them back on later. The shop is family owned and they install exhaust systems, mufflers, oil changes, and do custom work as well! Customer service was excellent from both gentlemen that I talked to there. On the weekdays I was told there are 4 people working. Communication was excellent, as my original interaction was via a quote request through the Yelp app. There are seats inside if you are planning on waiting. Pricing is very good and affordable! Highly recommended!

    Shops sign

    Brought my Q50 to this place, and I have to say it was the best experience I've had getting my exhaust done on any of my cars! Didn't take long at all either. Price was completely affordable and was definitely worth spending on. If you need any exhaust installed or even to repair a previous installed one, come check this shop out! It'll be worth the time and money!!

    Muffler delete!
    Lance M.

    They definitely killed it with my muffler delete! Can't think these guys enough!! Pleasure doing business with them!! Will definitely highly recommend them to anyone who are interested on getting their car serviced!!

    Labidi N.

    I came in the morning and Armando was very happy to help with my BMW, straight no waste time, not much question like most shop do, very professional, this is the place you want to get your exhaust work in Orange County I highly recommend it.

    They were very professional and very helpful I had a great experience and will be bringing my vehicle back for other work to get done by them! Highly recommend!

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    2 years ago

    Came here after getting high quotes saying I needed to replace my muffler. They did a quick inspection and fixed my muffler for $30.

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    2 years ago

    did not read the other reviews before coming here, but not surprised. quality honest service.

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    4 years ago

    Ralph and his crew did an amazing job. They offered the best price and I was in-out in about 45 minutes. Thanks again

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    3 years ago

    There so friendly and super fast anyone that needs to get muffler fixed or straight pipe this is the place !

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    4 years ago

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    5 years ago

    Installed a catback exhaust that took less than 30 mins! Great teamwork for everyone that helped!

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    7 years ago

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    Page 1 of 3

    7 Day Muffler & Auto Repair Reviews in Other Languages

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    Review Highlights - 7 Day Muffler & Auto Repair

    Needed to align after market exhaust tips from poor fitment and cane out with a nice muffler delete!

    Mentioned in 10 reviews

    Read more highlights

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    Hi Tech Automotive - 27 years commitment to do the best. We strive to gain the highest education in order to keep up with the technology.

    Hi Tech Automotive

    (515 reviews)

    I had a really great experience at this shop and honestly can't recommend them enough. A few weeks…read moreago, my catalytic converter was stolen, and I had it replaced at another shop. After that repair, my check engine light suddenly came on--even though it wasn't on before. The first shop told me it was a problem with the mass air flow sensor and tried to charge me to fix it, which didn't feel right to me. So I decided to come here for a second opinion, and I'm really glad I did. The mechanic took the time to properly diagnose the issue and walked me through everything step by step. Within about an hour, he figured out that it wasn't the air flow sensor at all--it was just a blown fuse. That alone saved me a lot of money and potentially from being overcharged elsewhere. What really stood out was the honesty and communication. He explained clearly what went wrong, didn't try to upsell anything, and made sure I understood the situation. On top of that, he even aired up my tires for free, which was a nice touch. Fast, honest, and affordable service like this is hard to find. I'll definitely be coming back and recommending this shop to others.

    Amazing service, quick (10-15min), affordable, friendly staff, professional - highly recommend! I…read morebought a lightly used tired that looked practically new for half the price out the door of what I was quoted at American tires. I had a concern that maybe the price was so good because they were using tires that were patched or something but nothing could be further from the truth! They shared were they source their tires from and rest assured you're getting a great deal for sometimes practically new tires. These guys and girls are the real deal. They have earned a life time customer and my trust to send my friends and family in the future!

    Anaheim Auto Repair and Muffler Care - Located in Anaheim Corner of Ball & Magnolia. Welcome Everyone!

    Anaheim Auto Repair and Muffler Care

    (602 reviews)

    I discovered this place through Yelp, but also I live nearby. I used to have a mechanic for YEARS…read moreat another shop, but unfortunately they got bought out by new owners and hiked up prices so much. Fast forward, I had gotten work done at this shop for my first time (I forget now what it was for).. & everything was quick and easy. Then this 2nd time I came, I had to get my catalytic converters replaced. They were so quick and provided great service. Carson, the manager, is so awesome! I appreciate so much how he would explain everything to me in detail about what needs fixing n if something ACTUALLY needs to be replaced or not. Very honest and helpful! Definitely coming back for future repairs.

    I have always had a great experience here, up until Friday. I came in to get a new starter for my…read morecar, which Carson had quoted me for over the phone a few days prior. Unfortunately, when I arrived, Carson was heading out for a break, so I had the displeasure of working with Langston at the front desk. Langston told me that Carson had given me the incorrect quote over the phone, which was fine; I just said I would go elsewhere for cheaper. When I told him this, he responded that his prices are the way they are because he uses quality parts. I asked him if the part would be aftermarket, and he said "it's Japanese." That didn't answer my question, so I asked him if the brand was Denso, and he said "yes, that's Japanese, right?" Aside from my interaction with him, I saw Langston being rude and giving attitude to my guy Carson after he came back from his break for no reason at all. I ended up going elsewhere to get the job done with the same Denso part for $100 less (close to the original quote that Carson gave me). Moral of the story is that I don't trust Langston, and I certainly don't like how he was treating Carson. Maybe he was having a bad day, but his attitude today was enough to make me question coming back here in the future (which is unfortunate because everyone else here is really kind and patient). Special shout-out to Skip for checking my car and sharing his knowledge with me.

    J's Mobile Mechanic

    J's Mobile Mechanic

    (78 reviews)

    Jesse is the reason my cat is alive…read more Last weekend, during the Garden Grove toxic chemical evacuation, my tuxedo cat decided that the undercarriage of my cousin's Tesla Model Y was a great hiding spot. It was not. He was wedged in there for 12 hours with no food, no water, and zero litter box access. He was absolutely losing it. I ran through every option. Fire department? Busy with the actual chemical explosion rattling all of OC, fair. Animal control? Ghosted me. My cousin, currently out of the country, tried Tesla Roadside Assistance through the app. Tesla's answer: their technicians are not trained to rescue animals. Noted, but deeply unhelpful in the moment. Two other mechanics passed too. Jesse was my third Yelp attempt and my last real option. He showed up within two hours, no fuss, and got straight to work. He tried everything - the frunk, underneath, removing the right wheel - methodically working different angles for an hour and a half because my cat had chosen the most inconvenient possible position to be chonky in. Jesse stayed patient the entire time and got him out safely. My cat is home. He is fine. He is completely unbothered, as cats are. Jesse showed up when nobody else could. That is not something I will forget. Oh, and his prices are insanely reasonable. If you need a mechanic who will actually show up and problem-solve, Jesse is your guy.

    I paid Jesse $120 toward motorcycle service, and apparently accepting payment was the only part of…read morethe job he was interested in completing. I had ordered a part and was waiting for it to arrive, so about a month passed. During that entire time, Jesse never contacted me to ask whether the part had arrived or to follow up on the work I had already paid him to do. I eventually had to reach out to him myself. Over the following three weeks, I sent multiple text messages and called several times, all of which were ignored. After getting nowhere, I called from a different number--and suddenly Jesse answered. His excuse was that he had been "busy." I asked him to send me my money back and he hung up and blocked my number. In total, nearly two months passed after he took my money with no communication, no follow-up, and no attempt to complete the service. Being busy may explain a delayed response. It does not explain ignoring a paying customer for over two months while continuing to keep their money. That is not poor time management; it is poor business practice. There was an $80 diagnostic fee, so technically I am only out $40. Financially, it is not a huge loss. Professionally, however, it says everything I need to know about this business. A reputable business does not take payment, fail to complete the agreed-upon service, ignore every attempt at communication, and then offer excuses only after being reached from a number it does not recognize. The motorcycle needed a diagnosis, but the bigger problem turned out to be the business itself: unreliable, unresponsive, and completely lacking in accountability. I would not trust Jesse with my motorcycle again, and I certainly would not recommend paying him anything upfront.

    Fullerton Auto Repair Clinic & Body Shop - Brought in for seal replacements

    Fullerton Auto Repair Clinic & Body Shop

    (454 reviews)

    I got a few quotes before deciding to bring my 2014 Prius Plug-in here, and I'm really glad I did…read more They weren't the cheapest and they weren't the most expensive, but I felt like they charged what they needed to in order to get the job done I had no idea they even worked on hybrids because I never saw that mentioned anywhere, and I think more people should know. They took the time to explain the repair, confirmed the diagnostic code, and even pointed out a few things I should do to help my Prius last longer. They noticed my hybrid battery cooling fan was missing after I told them I just had it "replaced" at another shop. That's the kind of information you don't usually get from a repair shop. They ended up not needing to drop the subframe, so they adjusted the labor instead of charging me for work they didn't have to do. It still took the amount of time they said it was going to take, but still discounted me a little bit which I thought was cool. I also had them do an oil change while it was there, and even that was less expensive than what I normally pay at places like Jiffy Lube or Valvoline. If you own a Prius or any hybrid, I'd definitely recommend checking them out. More than anything, I left feeling like they genuinely know these cars and took the time to educate me, not just fix it. I'll definitely be bringing my Prius back if I ever need anything else.

    I brought my car in here for a diagnosis because the car wasn't running properly and the check…read moreengine light came on. I was told that I needed a new engine and it would be like $6000. I got a second opinion and found out a tensioner in the timing chain had broke, and that was it, they rebuilt the timing system and I'm back on the road for less than $2000. I wouldn't trust them to change my oil.

    Mobile Mechanic in Orange County - 4 WHEEL DRIVE -E- TRUCK SHOP ON WHEELS

    Mobile Mechanic in Orange County

    (82 reviews)

    *Nick is also reviewed under the other Yelp account for OC Mobile Mechanics but I am reviewing him…read moreunder this account sense the phone number listed on that account is an imposter and can't be changed. If you want to read more reviews on Nick's service however, you can read the reviews posted there as well but call the number listed here to reach Nick* Nick totally came to my rescue on Sunday (2-10-2013). Within 45 minutes of contacting him he showed up to where my car was in Anaheim and did all 4 of my brakes for literally an eighth (yes, really an eighth) of what other places would charge. My car was completely disabled and the brakes were grinding metal to metal and in less than 1 hour I was up and running again! I figured I'd have to pay more for the convenience of having him come to me and for the speedy service but it was the opposite. What a pleasant surprise! I will never use another mechanic again.

    Too bad I can't give Nick more stars than five... that's the maximum!…read more Nick unbelievably helped me with my problem without charging me a dime. He was super patient with me (I am not automobile inclined) as we tried to diagnose my issue over the phone so that he could give me an accurate quote. I truly believe that any mechanic I have ever met, including my own brother, would have found a way to shake some coin off of me before helping me solve a problem, but Nick was up front about the prices (more than reasonable) and knowledgeable, giving me some troubleshooting ideas and a few options to best accomodate me. I won't bore you with the details (I have a small leak in my hydraulics), but I appreciate that he didn't insist that I make repairs, like a doctor or a dad would do. And he wanted to know how my troubleshooting worked out, calling him back either way, like a date dropping you off at your house and waiting for you to turn on your porch light to make sure you're safe. Anyway, this might sound weird, but I am actually looking forward to my next automobile issue because I want to give Nick my business. I trust him completely, and you don't hear many people say that nowadays. :) Thanks, Nick!!

    Full Service Auto & Transmission Repairs - My engine had several leaks and was absolutely filthy and within a week I had a brand new looking engine and no leaks.

    Full Service Auto & Transmission Repairs

    (494 reviews)

    5 stars Francis at Full Service Auto & Transmission Repairs…read morein La Mirada did a lot of work on my 2007 GMC Yukon XL and he nailed it. He replaced the radiator and water pump, repositioned the external transmission cooler, and replaced the tail housing gasket on the transmission. My truck has never run cooler transmission temps than it does now. Francis is very knowledgeable and actually understands how these older trucks heat up when you're towing or sitting in traffic. He explained what he was doing and why instead of just slapping parts on. If you need cooling or transmission work done right, take it to Francis.

    On April 3, 2026, I dropped my car off at Full Service Auto & Transmission Repairs for what should…read morehave been a simple repair -- replacing the skid plate. I found Francis through an online search because of the many positive reviews, and during our first interaction he was friendly, professional, and seemed very knowledgeable. He ordered the part directly from Acura and quoted me a fair price. My car was ready the following day, but when I arrived to pick it up, Francis informed me that my vehicle had been involved in an accident while in his care. He explained that another driver had been speeding through the parking lot and crashed into him. He gave me the other driver's information, and I contacted him immediately. The other driver gave a very different version of events. He stated that he was backing out of a parking space and did not see Francis. He also told me that Francis provided his driver's license information but refused to share insurance information. Now, more than a month later, I still have a damaged vehicle and have not received insurance information from Francis despite multiple phone calls, text messages, and outreach from Mercury Insurance. I trusted this shop to take care of my car, not return it to me in worse condition and leave me responsible for a $500 deductible. What has been most disappointing is the lack of accountability and urgency. Francis acted as though this situation was not a major concern and repeatedly assured me that the other driver would "take care of it," which has not happened. According to the other driver, Francis even asked him to change the story about what happened. I chose this business because of its strong reviews and the image Francis presents, but my experience has been extremely stressful and disappointing. I believe customers deserve honesty, transparency, and responsibility when their vehicle is in someone else's care.

    7 Day Muffler & Auto Repair - autorepair - Updated September 2026

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