My wife's 20 year old car wasn't passing smog and I noticed holes in the muffler. So, I took it to World Muffler and Pat took a look at it. He mentioned options for patching it, which would have been cheaper, but I decided to do it right and get a new muffler. He had it later that afternoon and even a bit cheaper than his estimate. Great work, great price, I trust this guy. I will definitely go here again. read more

These guys rule. No, seriously, they're awesome. If I could give them six stars, I would. I'm a fastidious owner - I give my car the highest possible care and attention - and when something breaks, I'm on top of it. Ever since I moved to Sunnyvale, I've been on the prowl for a reliable and competent shop to handle my BMW. I initially found Pat and his excellent crew while looking for a good muffler shop to do some minor exhaust work with my car. I wanted it done right, and I came to the right place. At first, the first time around - I wasn't happy with the sound, even though Pat had done exactly as I asked. I had him make some further changes to the car's exhaust setup until I was happy with the sound. While there, I discovered that they are also a full service shop, with BMW-specific training. Given how well my experience went with the muffler and exhaust installation, I decided to entrust my car to Pat for some electrical work, and later, a full cooling system refresh (radiator, water pump, hoses, coolant, the whole nine yards), as well as hydraulic work. Each time, the job has been done right, and the car was delivered on-time, properly mended, and professionally handled. As always, my services on my car were fairly priced, maybe not the best deal in town - but I'm willing to pay a bit more knowing that it is in the hands of competent professionals who care and will do the job right. Bravo Pat - you've got yourself a loyal customer. Thanks again. read more

Patric was extremely straight forward and helpful. Also fair in price. I'd recommend him to anyone!

Highly recommend World Mufflers! Been a long time since finding such an excellent business with integrity!

Took my 08 Mustang/AT Flowmaster to Pat, with in 2hrs it was done along with custom pipe work. Great prices and a solid job. They will also do other auto repair work as well. Thanks Pat and Yelp. read more

Dinan couldn't put the muffler on my e39 540i. Pat took me in on a Saturday (short work day) and had it done the same day. It cost a little more than he quoted, but he needed to straighten my exhaust closer to the manifold to align it better at the end. Quality work, at a good price. I came all the way from San Mateo to get the job done. read more

bottom line: pat is awesome, high-quality work i came here after browsing yelp for a high-quality muffler place. communicated with pat via email and he quoted me $60 for a resonator delete job. i got to the shop, he completed the job in under 30 min, and ended up charging me $50! he's super friendly and knowledgeable and i am planning on going back for any future work. his work is excellent and more than reasonably priced. read more

Lately, we had been smelling exhaust in my car, so my dad assumed there was an exhaust leak. I called in the morning to make an appointment, and got one right away. When I pulled up about 15 minutes early, Pat started the inspection immediately. He told me that there was no exhaust leak, but rather an oil leak that spilled everywhere. He showed me everything that he found, including some cracks and stuff, and said he wasn`t sure if we would deem them worth fixing. In addition, he was very thorough and patient with explaining everything to me. And all the price estimates he gave were really honest. Definitely defies the stereotype of mechanics always looking to scam others. read more

4 stars - I'm a fan. I had slightly mixed feelings after bringing my G35 sedan here for a Magnaflow universal (weld-on) muffler install. The bad: 1) Quotes. I'm a very detail oriented guy and I called ahead to get a quote, with the muffler (and P/N) in hand, explaining exactly the work that would be involved based on research on the forums. I told him he'd have to cut off the flange from the stock muffler, mandrel bend a new section of pipe, weld it back on to the stock flange and new muffler, and also weld on new hangers (using the existing rubber mounts). Was quoted $80. Came in, he looked at my car and the muffler again, and was told that it would be $100. Okay, whatever - not a huge deal but I was given a quote based on all the details provided and I don't think anything changed. Paid it anyways, it was a fair price. 2) Too-small muffler hangers. The rod he used to create a new hanger was way too small compared to the stock hangers. Stock = 12.5mm, his = 8.2mm. The problem this creates is that there will be a lot of room for movement of the muffler. Getting picky here - exhaust components should be in a fixed location, but with room for *some* movement. In my case, there was enough vertical movement that the muffler tips could actually hit the bottom of my bumper! I have a suspicion that had I not noticed this myself, it would not have even been brought up. A less picky customer could be in the same situation and have the muffler wobbling all over the place and not realize it. At the suggestion of Pat, I cobbled together some shims out of some leftover vinyl tubing I had around, and secured it on my own. I just don't see your average customer going to this length for a proper install. I feel this should be taken care of without mention, with pricing that reflects the level of detail. The good: 1) Knowledgeable. Pat knows his stuff, and is efficient at his work. All the welds and bends look great, and this is coming from a picky mechanical engineer. 2) Good Pricing. I called around for quotes. It's probably possible to get the job done for cheaper, but the value is good here. 3) Inspection. Pat spent time with me inspecting my car and making sure I was content with the install before leaving. I had to come back a second time for him to finish the job because I didn't provide the proper bolt for a hanger the first time, and he took care of it no problem. 4) Punctual. Pat told me when I could bring my car in, and was ready for me when I got there, and also finished the work in the time frame he said he would. Overall, I would still recommend World Mufflers to friends, but with a caveat to be clear with a quote beforehand and also to inquire specifically about getting proper hangers. read more

Thanks pat! He fixed the crack in my cat and precat on my r53 Mini Cooper s with speed and skil!!

Came in to have a new cat back system installed on my VW GTI. Pat was able to see me the same day and did a fantastic job on the install. He really took the time to make sure all the tips and everything was aligned and perfect. Everything was done in a timely manner. His customer service was fantastic and I will definitely refer him to friends and family. read more

Quick and Speedy! He helped me weld and install my downturn pipes for my cutouts! 20 minutes, 2 welds, 20 bucks per weld. Honest and helpful! read more

I took my car in with no appointment. He took a look at it, diagnosed it in less than a minute. He fixed in about a minute and the price was completely reasonable. He was friendly and helpful. He even pointed out my hitch was bumping into my exhaust pipe and moved the exhaust hanger a bit to help out. He was able to take my requests in English and translate them to any technical repair requirements. No special knowledge required to get your car fixed by him, which I appreciate. For any simple exhaust problem, I will certainly come back. read more

Pat, cool guy, honest guy. Coming out from the midwest my cat converter was rusted all to heck. Pat took a look and rather than having me replace the whole thing, he did a diagnostic, and revealed that it was only the shield that was damaged. He charged me $20 to take a look, but said if I could get a replacement part, he'd put it on for me for free. I called up the dealer, was able to get the replacement part. Brought it back to Pat, and he hooked me up. Car is as good as new. Pat is a honest mechanic, go to him! read more

Pat is a considerate guy and did an awesome job on repairing my muffler. He even went a little further and added additional reinforcement to a spot that was a common spot for damage to prevent future problems. Got the job done on the spot. Would definitely recommend! read more

World Mufflers, and Pat in particular, did a great job! I went in to get my catalytic converters replaced. Pat was very knowledgeable, and took the time to find the right catalytic converters that were CARB approved, and would fit my car. While other shops wanted me to leave the car with them for multiple days, Pat completed the necessary work in a day. I dropped my car off in the morning, and it was ready by 3! After Pat was done with it, my car passed the smog test with flying colors! read more

I've brought several cars to pat in the past. He's a very honest person and he gives out great prices. He's really flexible too. I brought my car in for a muffler delete and he was willing to weld tips on another day when I was able to supply them for no charge. I ended up buying tips the same day and brought them to him so he can do it all in one go, but that was amazing that he offered that! I would recommend this place if you're looking to get exhaust work done. 5/5! read more

It has been about six months since I had Pat repair the muffler on my 1994 Acura Integra. I had another shop repair it once before but they didn't do it right. Pat identified the problem right away and had it fixed in a very short amount of time. It has been perfect ever since. His prices are very reasonable compared to other shops too. read more

I had a Flowmaster 50 series muffler with twin exhaust installed on my Toyota Tundra. What I had chosen was too loud, so I took it back a few days later to add a Magnaflow resonator. Pat is all for what is simple and works, so no upsell. He gets the work done as promised and has high integrity. He didn't even want to charge me for the labor with the resonator add-on! Good guy, very experienced. Wish we could clone him! read more

Got a slot first thing Monday after coming in just before closing on Saturday. Dropped the car of at 8:10, got a call at 8:30 for the actual diagnosis of my exhaust leak, and was done at 2. Came in under the estimate even with a bit of extra welding work. Will definitely go back for my other exhaust needs, and will consider having the alignment checked there too once I'm done fixing the car. Thanks Pat! read more

10 stars! Professional, knowledgeable, great service and fair pricing. Would definitely recommend. Another mechanic told me the rattling noise was due to a catalytic converter which would have to be replaced but Patrick knew right away that couldn't be the issue. He diagnosed the real problem, showed and explained it to me, and had me rolling outta there in 30 mins. read more

After inquiring about a manual alignment at several other shops, no one would tackle the challenge. It seems that if the specs are not in the computer no one would think out of the box. At one of my stops Patrick was recommended. My first thought was this is a muffler shop but after talking with Patrick we set an appointment on Saturday so he could work his magic without being disturbed. Using the specs for a 1976 Mustang II, Patrick was able to make adjustments on my 1934 Ford Tudor Sedan to minimize tire wear getting as close to specs as possible due to the modified suspension. He took extra time in showing me what he was doing and why, also to make sure that the steering wheel was centered. Results were great, tracks straight, steering wheel centered, drives great. The real plus was the charges were less than he originally estimated. I highly recommend World Muffler for aligning Custom, Classic, or Hot Rod's. Patrick knows what he is doing. Thanks again! read more

This place is amazing. I found this shop through Yelp. Wanted to put a new muffler on my 4Runner to get the sound the way a truck "should" sound like. Also had a Cat Clamp installed here. I originally wanted to do dual exhausts, but Pat told me straight up that it's not possible without removing the spare tire or with awkward piping. He was straight to the point, no BS, and really knew what he was talking about. I got what I wanted for $250 flat (this include the installation of the clamp, the labor for muffler and tip, and the muffler and tip itself). Saved me a lot more money than the other shops I called for estimates... about $75-100 more. Installed an 18" Magnaflow muffler and was initially pleased. However, after a couple of hours of driving around the Bay, I was starting to get irritated with the interior drone of muffler and the exterior sound didn't tickle my fancy. In addition to the muffler dislike, there was a rattling sound from the clamp that he installed the same day. Needless to say, it drove me up the wall. Shot Pat an email and told him my issues. He said to bring the car in and he'll replace the muffler with my requested Flowmaster 50 free of charge and see what he can do to fix the clamp. That's exactly what I did. Brought the car in, swapped the muffler out and fixed the rattling from the clamp in under 35 minutes FREE OF CHARGE! In short, I highly recommend this place. Pat gives you great prices, great service, and treats your car as if it were his own. With all the auto shops along El Camino Real, this should be the first place you consider! read more

Pat is an honest mechanic. He stopped my exhaust vibrations in 20 minutes and he made sure I understood what kind of work I was getting done. Most importantly, his prices are excellent! He told me that he is starting to offer full auto repair services at his shop. I will be back very soon. Another plus is that he speaks Mandarin Chinese. read more

Based on the reviews I read here, I took my vintage car in to have some exhaust leaks fixed. They did a complete inspection, gave me a fair estimate and got the work done quickly. As is normal on an older car, they came across a few inexpected issues. They were great about keeping me up-to-date on what they were doing and were extremely fair in pricing the additional work. (I even asked if maybe they shouldn't charge more!) I am very happy with the results and would recommend them without hesitation. read more

Very reasonable and polite too. I took my Toyota Camry 2005 for 90K miles service. He charged me less than the amount estimated and also it was less than others estimation. I am very satisfied with the job done. I recommend everyone to trust this person. He is very genuine and never recommend any extra part change other than required. Excellent Job. read more

Patrick was great, charged me less than what he quoted over the phone, was in and out in about 20 minutes after welding my muffler back on. Highly recommend!!! read more

Got my 428i BMW installed with OEM performance muffler - got it done in 30min flat - and that's with honest pricing - got a discount even without me asking! The guy knows his stuff and is very efficient My hats off to Pat - he definitely earned by business. Next car upgrade will go to this shop instead of going to the dealers! read more

Its hard to find honest folks when it comes to auto repair, something that is beyond my domain knowledge. I went to this place when my 2005 Hyundai Accent was making rattling noise from the exhaust region. Some other places told me that I need to change my exhaust pipe. However, World Muffler found (and showed me) it to be just a old, rusty bracket that holds the exhaust pipe. The fix was a welding job. Got done in 20mins, paid $80 and went home happy. I strongly recommend this place for all your muffler needs. read more

Pat knows his trade well and uses good parts. It was Smog failure - he put in good part and the car passed with flying colors. Also, when welding you have to weld all around and otherwise, air leak will cause smog to fail. When it comes to muffler, I don't think that anyone can beat Pat. read more

I was referred to Pat when my car "failed" its smog and it was suggested that my muffler was clogged. Pat checked out the catalytic converter, determined that nothing was wrong with it or the muffler and referred me to a reliable shop which could do both a diagnostic and a smog. Turned out nothing was wrong and I got my smog from the shop he recommended. Pat gave me honest service and a great referral. So nice doing business with someone as knowledgeable and helpful as him. read more

I shopped around multiple shops that does alignment for price quotes and Pat's prices were very reasonable. I dropped by without an appointment and he gave me some consultation, what to expect from my model of car and told me to drop by the next morning. He was very thorough in explaining my tire wear state, what different parts of the suspension, and how they affect steering, to set my expectations. After running diagnostics, some specs were off in the passenger rear side so after the alignment my car now drives straight as an arrow. I should've had this done a long time ago, my Lexus drives like a Lexus should. Even the slight suspension bump noises from what I suspect are the suspension top hats in the the same side has quieted down a lot which gave me good idea of what to replace. Great communication and transparent service from Pat, I would get my next alignment here w/ no hesitation. read more

Patrick was awesome. Scheduled me at the right time, and it took 25 min to do it. Not only that, I had been hearing a weird rattle sound and had no idea where to check. Without me even asking him, he gave me a confused look and asked me if I heard that. So he put my truck back on the lift and found the issue immediately. My shield near my cat had a few cracks so he welded the cracks for me. Problem solved. This guys as honest as they come, and quoted me at a price that he honored, when he found out the muffler had been a little more than he thought. I didn't pay extra. This is the guy you want working on your vehicle. read more

I went to World Muffler based on the very positive (though few) responses on Yelp. I was very pleased with the service and recommend this shop. I came in 8:00am and had my car fixed in about half an hour. Patrick was very straight forward with business. The work was to fix a leak in the exhaust of my 1996 Acura Integra. Total for parts and labor at World Muffler was very reasonable. read more

I have my muffler fixed here a few months ago. Just created Yelp account today, I think I should write something instead of just read. I heard some voice from my muffler. I was upset. I just had a new muffler, why it broke so soon! After read these review, I decide to come here. I was expecting he will ask me to replace it. But he only charged me 20 bucks to fix it. Nice place. Worth my time to write some good words for this shop. read more

Very professional and honest approach to work. For my Toyota Sienna I was quoted by the dealer $1250 for the exhaust system and labor extra. Same work completed in $180 by World Muffler. read more

Pat did an excellent job at the right price. You simply can not go wrong by going here. Once again thanks for the excellent work! read more

Very happy with World Mufflers. Very friendly and helpful and gave me a quote over the phone to have some catalytic converters replaced that was cheaper than everywhere else I called. Install only took 4 hours and came out even cheaper than the quote after they were easier to install than they thought. I suspect many other shops would have just charged me the full quoted rate. I could tell my previous cats were aftermarket, because the welds were super-ugly. The welding job by World Mufflers was top notch though! read more

This (muffler) shop is first class. The owner, Pat, is a nice guy, and very reliable. Business is simple, precise, and honest. Pat fixed our muffler problem, and gave us a great price. I highly recommend World Mufflers. They repair more than just mufflers and catalytic converters. There is much more to this shop. They do tune ups, oil changes and other repairs. The repair of our car was very fast and clean. I will definitely go back, for future repairs and service! Our experience with Pat and "World Mufflers" was excellent! read more

Pat is amazing. He is the best and honest mechanic in the Bay Area. Our Honda 1996 failed the Smog, one of the shop in Mountain View quoted us $800-900 for them to fix the problem and will take 2 weeks to fix it. Went to World Muffler he quoted less than half of the price. After 2 days everythings fixed and passed the smog. Highly recommended Mechanic. Awesome job, Pat. We hope all the mechanics are like you, doesn't take advantage. read more