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Miramar Automotive & Transmission
- Oil
- Discount
- Communication
“I was never forced to buy anything and the best part is that they send you pictures of every issue with a brief explanation to help you understand what is going on.”
Best Muffler & Exhaust Shops in San Marcos, CA
24 technicians listed · 4 in San Marcos · 8 open weekends · 22 rated 4.5+ · 2 show a license
Data verified October 16, 2026
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Allied Gardens Automotive Inc
- Smog
- System
- Prices
“I recently was trying to sell one of my vehicles and being familiar with that vehicle, Matt suggested that the vehicle would be a great candidate for auction at bringatrailer.”
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Ray Frey Auto Center Inc
“As i sat in the lobby today I listened to him help 2 different people, one he spent 5 min doing some research on the guys problem and told him what to go do and if that didnt solve the problem..”
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Cass Street Automotive
- Inspection
- Battery
- Oil
“Cass Street automotive is one of the best places I've ever took my car to get a oil change Randy was super nice very professional and got the job done My car rides smoothly I recommend this place to anyone who wants to get the oil change art car look...”
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Sheens Auto Care
- Job
- Insurance
- Diagnosed
“Even with a surprise additional broken part discovered during repair (but not the diagnostic step), he quickly communicated the unexpected additional issue, waived the labor cost, and still completed all the car work by end of business day.”
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Robert's Auto Service
“I am so grateful for the time, care, support, integrity, and professionalism I experienced working with Christian, and I won't ever think about taking my car elsewhere.”
Listed for drivers in and around San Marcos, CA, these 24 shops handle mufflers, pipes and catalytic converters. What each one says about welding, custom work and warranties comes from its own website; ratings and quotes come from public reviews.
Area overview: San Marcos, CA
Of the 24 technicians we list here, 4 are in San Marcos itself and 20 come from San Diego (21 mi). The technicians on this page are rated from 4.4 to 5.0 across 3,834 reviews; all 24 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (93%), quality (81%) and value (75%). The topics that come up most in reviews of the technicians on this page are "fair", "communication" and "diagnosis". 8 are open on Saturdays and 1 on Sundays. 2 show a license on their websites; 4 list staff certifications (ASE) and 16 have a BBB rating of A or A+. 21 have ten or more years of experience, the longest 80 years. 2 offer financing; 5 are family- or locally-owned and 7 list coupons or special offers. We have a website on file for 19 of the technicians on this page; 12 publish a contact page; 7 list a public email and 4 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Do any shops listed for San Marcos check an exhaust free?
2 of the 24 shops state that they estimate at no charge. Exhaust work is one of the few jobs where that is easy to honor, because the fault is visible from under the car, so ask them to put it on the lift and point at the hole.
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Dualtone Muffler Brake and Alignment
- Quality
- Bolts
- Exhaust
“It's really difficult to find reliable mechanic shops nowadays but the whole entire team at Dualtone really gave me exceptional service from the moment I called in to up until the day I picked up my car.”
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Budget Muffler Brake & Alignment
- Job
- Sound
- Exhaust
“You can believe me when I say I will always keep bringing mine and my husbands cars here whenever they need fixing done because they have my 1000% trust in them always and forever.”
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Allen's Wrench
“Basically, I needed a new starter, and I opted for an after market one even though I was advised against it (Honda's is like three times more expensive).”
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Car Diego Auto Repair
“I left them my key and since I would be at work when it was done I asked if the could send the price to me and just pay on my debit card and leave my car on the street so I could pick it up w my key since I needed my car in the A.”
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Brothers Auto Repair & Tire Center
- Vehicle
- Brand
- Mechanic
“First thing I want to say if you looking for someone to rebuild your engine ask JT only the best Mechanic we drop our bmw with misfire , we got call after two days to tell us what's going on with our car was the timing broken .”
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American Muffler
- Cat
- Questions
- Price
“I have taken my car, my rally car, my auto cross car, my dads truck, my moms car, and my gfs car to this shop and I have always had amazing service for an amazing price.”
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Auto Guys
- Oil
- Price
- Up Sell
“Don is honest and tells me upfront what my car will need now and later with estimates of the cost beforehand -their prices are reasonable and I trust the work they do.”
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Barrio Auto Service ( Smog Star Certified )
- Catalytic Converter
- Battery
- Price
“When I pulled up they were working on the guy before me car and they just finished mane when they turned his car on n hit the gas a little bit i said oh yea, these the guys right here.”
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Heinz Gietz Autohaus
- Team
- Tesla
- Mercury
“Not only technically proficient and exceeding expectations on delivering reliable problem resolution; but their communication skills are above and beyond other service centers (and I've been to several others in San Diego and surrounding areas).”
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Pure Motorsport
- Tuning
- Wheels
- Audi
“Their price for an oil change is essentially what the dealer would charge, so it's a no brainer to one-support a local business and two-bring my car to a shop that specializes in VW/Audi vehicles.”
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Vinh Phat Auto Repair & Muffler
- Oil
- Battery
- Mechanic
“Vinh has always given me an honest estimate of the repairs that need to be done and has also guides me to only get the work done that is completely necessary.”
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Andy's Muffler Service
- Work
- Smog
- Price
“He was able to locate a catalytic converter and get it there by the weekend, I showed up early to get the part installed and I waited to get serviced since there was 3 other cars in front of mine.”
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Miguel's Auto Service
- Mechanic
- Prices
- Oil
“First of all, amazing service - I thought it might be pushing it to ask for an oil change in a couple of hours- 40 min later they called me and it was done!”
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Hai's Auto Repair
- Vehicle
- Team
- Price
“I was a little bit skeptical for I talked to a few other motor body companies including the Dent Masters, and all of them were saying that it won't be perfect unless I completely change the bumper that I didn't want to do.”
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Hillcrest Smog Test & Auto Repair
“Recently I made a grave mistake of having my car serviced at another repair shop (which I'll leave unnamed, but after seeing the service reviews it is clear on where the fault lies) due to a sudden breakdown.”
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AM Mufflers & Tires
- Truck
- Prices
- Fair
“I've been going to Armando for a GOOD while, not only because he is part of the family for past 30 years but because there isn't a better place to get your auto,truck, or oldie serviced or customized by the men themselves.”
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Bob Brown's Automotive Services
- Mechanics
- Prices
- Vehicle
“The mechanics are all polite and take the time to carefully explain to those who do not "speak car" (that would be me) exactly what is needed, why it is needed, and when it is needed by”
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Aloha Automotive
- Mechanic
- Knowledge
- Honest
“I've had a mechanic I've used for my family's whole life in San Diego, but they were down south and we decided to start finding a new mechanic for all of our Toyota's and everyone kept talking about aloha automotive.”
Muffler and Catalytic Converter Services in San Marcos, CA Cost Estimates
Minimum cost
$105
Maximum cost
$1623
National Average
$163
Avg Per Hour Rates
$87
$128
$279
Typical price range is based on 341 cost profiles
Why these companies made our list
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