Great experience. I had a busted connection between my exhaust pipe and muffler. Dealer wanted me to pay thousands to replace the whole exhaust system. They quickly diagnosed the issue and even showed me the problem while the car was on the lift. Then they quickly fixed it for a very reasonable price. Highly recommend. Thanks!

Good customer service, they do general maintenance to like oil changes. Ive always felt like their prices are fair and Im not being cheated.

Have had to take my car to Lous twice now, once to get a custom bracket made for my exhaust as another garage simply cut it to install something else with no regard. I just came back from my second visit, and this time they diagnosed and repaired it in 15 minutes. Put the car up on the lift, showed me the broken part and the new part, and sent me on my way for a lot less than I planned. I would not hesitate to go back.

I bought a pre-owned vehicle with a split exaust right below the cats. It was a straight pipe that had terrible drone at highway speeds. Brian at Lou’s Custom helped me install a new X pipe with resonators that not only still sounds amazing but cut down on the drone significantly. The pricing was very fair as well, giving me a rate that was 1/4 what was quoted at two other exhaust shops I asked for the same exact work. Weld’s are perfect and the work was quick as well. Would recommend and will be coming back for any work in the future

In and out in 25 minutes. Friendly service. Reasonable price.

Great work. Profesional and punctual.

My engine light had been coming on and off for years. I had been told by the dealership I needed a new catalytic converter. However I lived in SC where there is no inspection so until I moved back north I let it go. I heard good reviews about Lou’s so I saw them. They did not Talk about changing it out until we tried other less expensive options like Cataclean Exhaust cleaner. (Which worked for awhile) When there wasn’t any other fix they did my catalytic converter at a more reasonable price then the dealer. They were wonderful to work with. We will use them again for some of their other services.Thanks to the personable and knowledgeable team there!

I recently had Lous Custom Exhaust in Waltham do a major job on my Toyota truck. My cylinder one misfire turned out to be a leaking head gasket. Brian and Will at Lous did an outstanding job. They gave me a competitive and reasonable estimate and completed the highly technical job without a hitch. Brian kept in touch with me throughout the whole process and completed it in just a few days. I appreciated his honesty and integrity. Im an ex mechanic who understood the job and he was always professional with his recommendations and work. I cant say enough positive things about Lous custom exhaust and I highly recommend their business. Thanks, Doug P.

The mechanics at this station know their job perfectly well. The guys easily solved my problem with the engine and the price of repairs was not exorbitant. My recommendations.

Great shop! They work hard and are honest!

Great service! Guys with working hands. The work was completed on time, they gave practical advice on exploitation, real professionals.

I want to thank Emery and Joe for making my visit to Lous exceptional. Brought my 1996 Volvo 850 in for an estimate at 8am and was out of there by 9:15 am with a new catalytic converter and a working exhaust. Best Service ever, and pricing at half the price of others. Love this place! Thank you for making my day. Highly recommended. Oh, and a one year warranty too!

Excellent prompt service and a very friendly informative staff.

Lous is the best! My car makes big noise when driving. Brian told me honestly where the issue was. And on top of it, he provides alternatives for me to consider. It gives me a big relief. Put it simple - it is hard to find a Good and Honest auto repair shop these days. But Lous is the one. Thank you sincerely for your expertise!!

Went to Lous for a flex exhaust pipe repair, and they did a wonderful job - my car starts up and runs quieter than ever before, and they got the repair done quickly and with a high level of quality! Pat is a phenomenal mechanic.

I was very pleased with the service. The service was prompt, and very welcoming.

These guys are great. So far Ive brought 2 cars to them for custom exhaust work. Their prices are reasonable, they do great work and theyre all wicked friendly. If you need exhaust work done near Waltham these are your guys.

These guys get it. They realize that customer satisfaction is their best marketing tool and have lived up to that promise. Everyone, and I do mean everyone I dealt with (no less than three different people) was friendly and considerate. Emery, their office manager was great to talk with... Ask him about his love of bike riding. And equal to their customer service was the price. I paid half of what I was expecting to pay or would have paid elsewhere. Lastly, the work done was quality. One thing I noticed, which Ive never seen before, was that they painted over the all the welds they made to prevent premature rusting. Ive had other exhaust jobs done where the welds were left untouched and thought nothing of it. Very happy all around with these guys.

The best exhaust work at the lowest price . Noicy exhaust . Made appointment Monday for Tuesday morning. 1 hour later Im on my way. Anyone else would have charged 1500.00 plus for a new exhaust. Lou Custom Charged only 225 to weld on a pipe.

Recently had an exhaust system put into my 05 F-150. I got quoted at a couple of other places for over $1,000 to do what I wanted, but they did it for a fraction of the price with just as much if not more quality. Would not hesitate to recommend them to someone. Everyone was nice, helpful and informed. Perfect experience.

I could not be more pleased with the service that I received from Lous. I brought my 2005 Toyota Corolla in for a muffler repair, fully expecting the typical $200+ replacement bill. They were able to customize and weld in a rear pipe replacement for $80. And, all done in under 3 hours! These guys are friendly, knowledgeable and honest. Dont exhaust yourself looking for an alternative. Trust in LOUS.

They are 100% professionals.

Customer service is absolutely the best! Joe helped me figure out exactly how to get my car set up for maximum fun factor, while staying way within the budget. He went above and beyond to show me options and brainstorm ideas for what I wanted to accomplish. He is the definition of great customer service. Everyone at the shop was friendly, professional and knowledgeable. I would totally recommend Lous in Waltham to anyone looking for solid exhaust work on their car.

Needed a bunch of exhaust with done to pass inspection. They were up front and helpful about price and expected work. Definitely will bring my car back here any time for additional service work.

Great service year after year, at unbeatable value and price. Everybody in the shop is very easy to talk to, and they do exactly what you need done, or what what you ask them to do; no desperate upselling attempts... good bunch of people...

I have been going to these guys for over 15 years.Today i had to have my car towed because it wouldnt start.Turns out the cable from the negative connection snapped off due to wear and tear(11 year old car).They took it in without any hesistation.Told them to take their time seeing i wouldnt need the car until tomorrow am.They told me they would call me with an update later on.Great guys,great service and fair prices.I recommend them to anyone living or working in the waltham area

Big bills and contradictory explanations throughout. In for a simple exhaust system patch. First red flag: While informing me of the needed repair, the technician started by criticizing some earlier work done on my car that he noticed, asking me who did it. I had to tell him that it was HIS shop that did it!!! He clammed up quickly. Making things worse, they did the exhaust repair and it triggered an engine problem light - they claim it’s pure coincidence (“some fluke”). No apologies, four visits and long waits each time, still not repaired properly. They want to replace the sensor for $200 additional to the $300 taken so far. At their mercy and not happy. They went from being all folksy/swell guys to impersonal pretty rapidly. Stay away.

They are so reliable and honest. They wont force you to make unnecessary repairs or overcharge. Working with them is a very easy and positive experience!

Great Guys Great Service very organized and professional I highly reccomend the shop.

Best exhaust shop around. Everyone knows their cars and is willing to bend over backwards to make even annoying customers like me happy. Will be bringing my vehicles here only from now on and only place i would recommend personally.

Best exhaust shop in the Nation..they dont over charge you and will be honest with what you need..ask for Joe

This place is an example of what auto repair shops should be: high craftmanship, honest and genuine customer care. No upselling and overcharging. They showed me the undertow of my car and walked me through not only the problem spots but also the non-problem spots (where my dealer made it to be a problem).

I brought in our Toyota Tacoma they looked at it, quoted it, and came in on budget. Not only that but when I asked where the bus stop was they drove me there, and came and picked me up at the same place when I came back that afternoon to pick it up. I found them to be friendly and professional. loved my experience.

Lous is the best. I discovered them a few years ago when every mechanic in town wanted 900-2000$ to fix the exhaust on my old acura. When I went to lous they charged me like 140$ to rebuild almost the entire muffler. It blew my mind. I have been there 5 or 6 times since with a couple cars and the repairs always range from 70-400$ and they get the repairs done within a couple hours. Also Emery at the front desk is a really nice guy I usually talk to him a bit while I wait. This place has saved me a ton of money and time, If you need anything muffler related repaired I highly recommend them.

Quick and no hassles.I had a sheered exhaust pipe on my CR-V. They replaced it within 30 minutes for $125. Highly recommended.

Great service. Honest guys that wont screw you over

Excellent, professional staff. reasonably priced, very satisfied with work done. Efficient and friendly service.

No other spot could get exhaust work done like these guys they are the best!

The best service ever you get your moneys worth and more ! the nicest people my car has never run so well !

Lous does excellent work for fair prices, and get work done on time. Helped me with an exhaust leak on my explorer and were extremely friendly and great to work with.

Did a repair I was told would cost 450-600 for 200. Set a time, came in, gave a free estimate and then had the work done in 1 hour. Definitely recommend

Great prices, great quality and great people.

The check engine light was on on my Volvo. Volvo dealers quoted me over 6K to replace the two front catalytic converters. I went to Lous yesterday to seek any help. Lous suggested me to buy a bottle of cataclean from Autozone to clean up the catalytic converters. It worked!!! The check engine is off now and my car has passed the state inspection.

These guys are great. Saved me hundreds rather than going to the Nissan dealership.

Update: flex pipes they install burn through quickly after 1 year of warranty passed while I only put 7k miles/year. They blame chinese cheap metal and claim the new ones are the best - did this to me 2 times in a course of 5 years. They get stiff when I brought all my receipts saying that their work has to be re-done every 2 years vs Factory flex lived for 10+ years on my 18 year VW Passat. New price for flex pipe increased ~1.5 times. But they are indeed ~2 times cheaper than Monroe.And furthermore coincidentally my CV left joint, while it was professionally replaced 8 months before the exhaust work, a few days after this place worked on my car, unscrewed and fell out of gearbox while I was on a trip to New York, causing me ~$800 in repairs and related towing/car renting expenses. I would avoid this place from now on. I guess they got upset with me bringing a stack of old receipts trying to reason them about the price hike on the same job done recently, or they just carelessly handled the parts around their area of work.Original review from 2014: Nice people, guest wifi (ask staff for pw), Ive replaced flex pipe in my VW B5, had appointment same day I called, was done in 1 hour, and was given 1yr warranty (as usual in this place). Highly recommended.

Honest work at an Honest Price!! Best Service Around!

Excellent work, good price, great service

Lous custom has always found and fixed any problems with both of my vehicles would bring them to Lous before dealership awesome crew @ Lous

Went in on a Friday after talking on the phone. They said ok come down at 2pm and we will take a look. I got there right before 2. I was told the tech i spoke with just started another job and I would have to wait a half hour.We talked about muffler options looking at their muffler ($150ish) and a tip ($70) or a Magnaflow and the guy showed me a $250 muffler. Prices seemed high but i said hey call me with a quote on the Magnaflow (i picked one out from a book)I Never heard anything that day or monday and here it is tuesday night. With no estimate/price and no appointment. Honestly everyone there was nice and helpful but, that doesnt mean much if the job is not executed. Really too bad as most reviews seem great and even the lady in the waiting room said she has been coming for years and loves it.

I was in and out in less than an hour with a new muffler. Do yourself a favor and come here for any exhaust needs.

Good work reasonably priced!

Fair and honest auto repair

Great prices and honest.

Excellent service experience

Stopped in to see if they could connect my muffler to my intermediate pipe where it had broken and they fixed it within an hour and at a great price.

Rather go here than the dealership

Good people

Great guys! I havent gone lately, but Joe and Brian are great to deal with.