5 Star - absolute great service...a real professional...get in-get out fast... honest...reliable...highly recommend... John is extremely friendly, and you can tell that he loves cars. While I was there a short time, John had to move one of the cars he was working on. I never saw the car he was driving. I heard the car coming. Everybody heard it coming. The roar was beautiful. It sounded like a muscle car. John made this possible. He can do it all. I am definitely coming back. read more

I highly recommend White Marsh Muffler and Brakes to anyone looking for an Experienced and Effective auto mechanic. I had an issue no one else could fix. It was with a Cadillac I inherited from my father. This was the only place that could fix it. Not only did he fix it, but he spent time with me explaining in detail, issues I need to look out for and what could happen. I was extremely impressed with the service and I was very pleased with the level of KNOWLEDGE of this kind Angel here. :-) I am very grateful to him. read more

I brought my Trailblazer in for an exhaust leak. Owner John knew exactly what was wrong before he put it up on lift. This is the 4th vehicle that John has expertly repaired for me. I highly recommend his service and vast knowledge for any repair. Not many left like John. read more

Definitely recommend, great work, did not take long at all. My Nissan is purring like a kitten now. Very nice guy, friendly, very down to earth. Would definitely go back again. Highly, highly recommend. Excellent service. read more

John has been working on our vehicles for over 15 years. An excellent mechanic that we truly trust with all mechanical work that is needed. He does the work needed and if he discovers something else that is wrong or will eventually break, we tell him just go ahead and fix it. Best business for auto repairs in the area. Highly recommend. We won't take our cars anywhere else. read more

If you get your car worked on anywhere but here, you're making a huge mistake. John is honest and his rates are very reasonable. It feels like he genuinely likes helping people. Just remember, mechanics don't break your cars they just fix them. You may not like what you hear from John, but you can count on it being the truth. read more

I cannot give this business any stars because when I called them to talk to them the person who answered the phone (it was a man but I cannot remember his name) was so incredibly rude to me that I will never give them my business. I will never even call them again, either. Oh, well.... read more

I was looking for a slightly beefier tone in my Pontiacs exhaust system. It was desperately in need of replacement anyway. John took the time to show me exactly what he thought I might need and made a lot of great suggestions. The work was super fast and came out great! read more

John did a great job putting a catalytic converter on my Nissan. Got the job done right and didn't overcharge. Honest hardworking and takes pride in his work. One of the best local mechanics. So glad I found him after moving to the area. read more

I bought a supposedly "bolt on" Supersprint exhaust this past summer for my BMW Z3 that just would not fit correctly. I tried fitting it and it wasn't right. I took it to another shall-not-be-named shop in York, PA on a friend's recommendation and they actually made it worse. So I just did a quick search of custom exhaust installers in the Towson area and Whitemarsh Muffler came up. I looked at the website, liked that it was a small, family run shop, and figured I'd zip down there one Saturday morning to see if they could help. The owner, John, is a heck a nice guy. He put the car on the lift and we looked at it. He made some suggestions on how to get the exhaust installed right which involved cutting the pipe between the cat and the exhaust and custom bending a new pipe so everything fit right. That way, the exhaust sat high enough and straight underneath, and more importantly the exhaust tips did not touch the rear bumper and damage it. He gave me an estimate, which was very reasonable, and we scheduled an appointment for the following week. I dropped the car off in the evening and it was ready to go the following morning before 9 AM. John left it on the lift for when I arrived, raised it, and showed me the work and what it took to get it installed right. Everything looked great and his eye for what was needed was perfect. It fit exactly the way he said it would! High quality work, reasonably priced... I highly recommend Whitemarsh Muffler. read more

First job I had done here where new headers back replaced by John.....very detailed in his work and everything was done better then I expected. Love the Flowmaster exhaust he recommended and put into my 71 Chevelle....sounds awesome. Second job - the big one - was leaking so much oil out of the engine that he informed me the only really good way to make sure everything would be sealed and fixed was to pull the engine. Not only did he degrease (3 day job) the engine but then he painted it Chevy Orange. We replaced the dual carbs down to a single Quick Fuel carb, new cam, new timing chain, new clutch, new valve covers and new air filter. I was expecting my car to really be in his shop for far longer then it actually was.....I am absolutely happy with the work done and highly recommend John for anything you may need or even be thinking about doing to your historic/muscle/cruiser car. He is honest and upfront about the work that needs to be done and is very detailed in the work he does. read more

I had a pretty simple request for these guys. Remove the heat shields on my resonator and front cat on my 2009 forester. That or tighten the bolts to fix the rattle. Simple. There was an audible rattle that I located coming from a few specific heat shields. Instead of doing what I asked, they welded all of the shields, which didn't fix the problem (actually made it worse), and charged me $80. Didn't call me to ask me if thats ok. They just did it. The guys reasoning was 'well, there were too many heat shields on this car'. Ok buddy. On top of that, when I arrived to have it done, the guy acted like I was inconveniencing him. I'm not paying you to treat me like a know nothing peasant. It was a very uncomfortable experience. Now I am stuck with the same problems compounded by the fact that the shields are now welded. I am supremely disappointed. I will never go back to this place. Maybe they are good working on trucks and older cars, but I wouldn't trust them to work on modern exhaust systems. Thats just my 2 cents. Go somewhere else. read more

We were so lucky to find White Marsh Muffler and John Watkins. It was around 7pm on a Friday night of Easter weekend when we began having car trouble on our trip from New York to Virginia. We got off I-95 in White Marsh, MD and began calling dealerships in the area. All the places we called were closing for the night and were already booked up for Saturday. We happened to see White Marsh Muffler as we were driving along. The owner, John Watkins, was locking up, but after hearing our situation, he hopped in the truck to hear what was going on, then put it on the lift to look it over. He quickly identified the problem, located the part, and said he would be in at 7am the next day to fix it. We were amazed at our good fortune of finding such helpful, generous and honest mechanic in our time of need. The truck was ready by 9am on Saturday and we were on our way - incredible service at very reasonable price - we were so grateful. We wholeheartedly recommend White Marsh Muffler and John Watkins to anyone in need of auto repair - he's a great mechanic and an even better person. read more

Very nice guy. Seemed honest and straightforward in all discussions leading up to the work being done. Got an appointment quickly. I'm very happy with how the exhaust and CAI turned out on my truck. read more

Have had John work on my 04 avalanche several times to install a Flowmaster exhaust. He is extremely knowledgeable, works efficiently, and does quality work at unbeatable prices. The exhaust looks and sounds great. I wouldn't go anywhere else for this type of work. Highly recommended. read more

John took a look at the suspension on my jeep, I misdiagnosed it and he set me straight. Didn't charge me, I'll definitely take it there when it's time to fix and lift it. read more

This guy is a class act. Friendly, funny, honest, knowledgable. He took care of my noisy car and didn't charge me a dime since it was a quick fix. What a refreshing surprise! read more

It's not a fancy chain store, but they have honest people and quick service. My car's exhaust pipe broken. They fixed it within an hour with a very reasonable price! read more

Brought my truck here for the first time yesterday. John the owner is a great guy and explains everything in layman's terms so you understand. He was fast, thorough, knowledgeable, and friendly. Now that I know they can do everything except body work, I'll be bringing all our cars here for routine maintenance and otherwise. Thanks John! read more