Your Trusted Exhaust Service Shop

The exhaust professionals at Lou’s Custom Exhaust of Worcester/Marlborough specializes in performance exhaust and muffler systems. Whether you need an exhaust system repair or a complete manufacture of an exhaust system, we work with foreign and domestic vehicles. We have the skilled and experienced team to ensure your vehicle performs at its best. Most vehicles are equipped with restrictive exhaust systems to keep them quiet. Let us unleash the horsepower and torque in your car that auto manufactures don’t offer with a performance exhaust system. Contact us today!

Unbeatable Customization

For more than 50 years, Lou's Custom Exhaust has been blowing away the competition with unbeatable service, knowledge, and performance.

Unmatched Service

Trust in service from a company that has more than 50 years of experience in the field to get great results.
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Quality Products

When you're looking for performance, come to folks who have built and designed it from scratch.

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Awesome Results

Before stopping in to give your vehicle an awesome boost, flip through our photo gallery!

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FREE estimates!

Call Now:

Marlborough: 508-485-9700

Worcester: 508-798-8500

Find out how Lou's crushes the competition – and why customers keep coming back.

HUGE Savings
Foreign and Domestic Exhaust Systems
Commitment to Quality

Get a FREE estimate today

Side View Of A Blue Truck — Marlborough, MA — Lou’s Custom Exhaust Of Worcester/Marlborough

From Our Happy Customers

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Great work, great price, quick, only do what's needed. Super nice employees, friendly, hated working and respectful. Like cracked from fatigue, they fixed it and added a flex joint so it won't happen again! I wouldn't go anywhere else and all the Lou's locations are just as good.

- Ralph S.

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10/10 would recommend. 👍

Cody is super nice and easy to work with. He did headers and cats on my SS Camaro. Quoted me a price to install and stuck to the price. He also found 2 exhaust leaks and welded them for me. Scheduling was easy and on time. I drove from Haverhill to Marlboro to have him work on it. I will definitely be back to have any other car done done with Cody. ☺️

- jen l.

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Called on a Friday afternoon to see if I could get a muffler delete on my car, was able to to get the car dropped off and back the same day. Sounds great. Will definitely go back in the future.

- Connor

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Forgot to post last year, I had the full exhaust replaced on my Suzuki Samurai. It has a VW Diesel engine in it, so nothing factory would work at all.
Brought it to Lou's of Marlboro and they took a few minutes to look it over, gave me a great price on a stainless 2.5" system from the turbo all the way back, and he put on a nice black tip that really fits the look of the rig.
Thank you for great service!
I'll be bringing my TT in this week... previous owner had the exhaust repaired somewhere else and it still leaks, I have no doubt the guys at Lou's will get me fixed right up.

- Jesse C.

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I had never heard of Lou's until I posted a short video of my exhaust leak online. More than one person (including a mechanic) had suggested Lou's, saying these guys were great and would save me money. With a 12 year old truck, I would rather repair what could be repaired and not be told I needed a complete new exhaust system. After seeing great reviews, I had called in and spoke with Cody, who was very friendly and professional. I got a quick appointment, the repair was assessed, approved and completed quickly. The price was very reasonable. I would have expected to pay way more somewhere else. It's no wonder these guys have great reviews.. They know their business very well! Thanks guys.

- Brendan C.

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Slide title

Great work, great price, quick, only do what's needed. Super nice employees, friendly, hated working and respectful. Like cracked from fatigue, they fixed it and added a flex joint so it won't happen again! I wouldn't go anywhere else and all the Lou's locations are just as good.

- Ralph S.

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Slide title

10/10 would recommend. 👍

Cody is super nice and easy to work with. He did headers and cats on my SS Camaro. Quoted me a price to install and stuck to the price. He also found 2 exhaust leaks and welded them for me. Scheduling was easy and on time. I drove from Haverhill to Marlboro to have him work on it. I will definitely be back to have any other car done done with Cody. ☺️

- jen l.

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Slide title

Called on a Friday afternoon to see if I could get a muffler delete on my car, was able to to get the car dropped off and back the same day. Sounds great. Will definitely go back in the future.

- Connor

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Forgot to post last year, I had the full exhaust replaced on my Suzuki Samurai. It has a VW Diesel engine in it, so nothing factory would work at all.
Brought it to Lou's of Marlboro and they took a few minutes to look it over, gave me a great price on a stainless 2.5" system from the turbo all the way back, and he put on a nice black tip that really fits the look of the rig.
Thank you for great service!
I'll be bringing my TT in this week... previous owner had the exhaust repaired somewhere else and it still leaks, I have no doubt the guys at Lou's will get me fixed right up.

- Jesse C.

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I had never heard of Lou's until I posted a short video of my exhaust leak online. More than one person (including a mechanic) had suggested Lou's, saying these guys were great and would save me money. With a 12 year old truck, I would rather repair what could be repaired and not be told I needed a complete new exhaust system. After seeing great reviews, I had called in and spoke with Cody, who was very friendly and professional. I got a quick appointment, the repair was assessed, approved and completed quickly. The price was very reasonable. I would have expected to pay way more somewhere else. It's no wonder these guys have great reviews.. They know their business very well! Thanks guys.

- Brendan C.

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Slide title

Great work, great price, quick, only do what's needed. Super nice employees, friendly, hated working and respectful. Like cracked from fatigue, they fixed it and added a flex joint so it won't happen again! I wouldn't go anywhere else and all the Lou's locations are just as good.

- Ralph S.

Button
Slide title

10/10 would recommend. 👍

Cody is super nice and easy to work with. He did headers and cats on my SS Camaro. Quoted me a price to install and stuck to the price. He also found 2 exhaust leaks and welded them for me. Scheduling was easy and on time. I drove from Haverhill to Marlboro to have him work on it. I will definitely be back to have any other car done done with Cody. ☺️

- jen l.

Button
Slide title

Called on a Friday afternoon to see if I could get a muffler delete on my car, was able to to get the car dropped off and back the same day. Sounds great. Will definitely go back in the future.

- Connor

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Forgot to post last year, I had the full exhaust replaced on my Suzuki Samurai. It has a VW Diesel engine in it, so nothing factory would work at all.
Brought it to Lou's of Marlboro and they took a few minutes to look it over, gave me a great price on a stainless 2.5" system from the turbo all the way back, and he put on a nice black tip that really fits the look of the rig.
Thank you for great service!
I'll be bringing my TT in this week... previous owner had the exhaust repaired somewhere else and it still leaks, I have no doubt the guys at Lou's will get me fixed right up.

- Jesse C.

Button
I had never heard of Lou's until I posted a short video of my exhaust leak online. More than one person (including a mechanic) had suggested Lou's, saying these guys were great and would save me money. With a 12 year old truck, I would rather repair what could be repaired and not be told I needed a complete new exhaust system. After seeing great reviews, I had called in and spoke with Cody, who was very friendly and professional. I got a quick appointment, the repair was assessed, approved and completed quickly. The price was very reasonable. I would have expected to pay way more somewhere else. It's no wonder these guys have great reviews.. They know their business very well! Thanks guys.

- Brendan C.

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