American Muffler & Radiator Service

Came by for some assistance with an installation of a performance exhaust system on my new 7 Series BMW. Dirk and Ismael took the necessary time to full understand my needs and applied creative expertise to complete a perfect custom install. Overall, I had an outstanding customer experience and wouldn’t hesitate to recommend American Muffler to family and friends. A++++++++!

I could never, ever send anyone here and sleep at night. I first called this place to have work done on my motorcycle, and they wouldn’t even listen to what I needed. They immediately said «We don’t work on motorcycles» however, growing up a muffler shop was the exact first place we would go for work like this (I needed a connector pipe with two bends and two hooks welded on, SIMPLE). After getting similar results with other shops I decided to just drive my bike in and force people to look at it. The first business was closed, so I went to the next closest location: this one. What a mistake! I bring the bike in and the guy says «Bring it on up, I’ll take a look at it.» He immediately starts fabricating a pipe out of scrap metal. I think it’s strange I don’t get a quote or anything but I’m happy someone is finally trying to help me. He goes back and forth between his pipe bender, the bike, the flaring tool, the bike… making progress but slowly. I can tell the guy is disgruntled (it’s right before lunch) but I’m quiet and letting him do his thing. He then grabs my muffler to flare out the input diameter. Let me just say something real quick about this muffler: It is brand new, cost me $ 500, and is literally the VERY LAST ONE made by Two Brothers Racing for my bike, it’s a discontinued product. So the guy brings it over to the flaring machine and I hear a loud pop… He cracks the inlet tube. This is where things get rich… he comes over to show me and says «Nothing you can do about it now, that’s aluminum… can’t weld that.» NO APOLOGY OR ANYTHING!!! So he goes about finishing fabricating this pipe, and he welds on a washer which works but looks terrible and asks if I’m happy. I ask about the second washer to be used as a hook and he begrudgingly welds on another. When all said and done the pipe does work, and he tells me that once I use gasket sealer it shouldn’t leak and be fine. He tells me the whole thing will be $ 50, and won’t take my credit card. He makes me walk to the donut store just down the street and use the ATM to get cash. Had I broken someone’s $ 500 part, the least I would have done was take their credit card (he does have a machine, but only uses it for big purchases apparently) and give an apology. No discount, no remorse, nothing… I was treated like dirt the whole time. Wholly unprofessional and not at all like any shop I have ever been to in my life. I would recommend you stay far, far away.

I was looking for an honest and reputable muffler shop around town to work on my brand new truck. Staff was very friendly and they did a quality job. I would definitely recommend this shop for any muffler work !

I’ve had Dirk and his team install a custom Flowmaster system in my vehicle, and I’ve also had them install a K&N cold air intake system. These guys are not only extremely knowledgeable, but they are friendly and easy to deal with. I could not be happier with the speed and professionalism when performing these installs, and they do it at a very competitive price. I would not hesitate to go to them in the future, and have recommended American Muffler to friends and family as well. Good to have honest and dependable folks like this locally. Do your research, shop around, and you’ll realize guys like this are a dying breed in the industry, unfortunately. Good job guys!

I came by thinking I wanted to take my stock mufflers and replace them with MagnaFlows, I was disappointed he didn’t offer his opinion, he just gave me a paper saying it would cost me $ 625 for the mufflers and new exhaust tips. So I called SS motorsports in Simi and he told me that it from his experience, it’s better to do a muffler delete on a v6 (cheaper, louder, sounds better). I ended up only paying $ 260 for that and I’m very happy with it. The guys at American muffler weren’t mean or anything and it looks like they’re good at what they do but their prices are a lot more expensive than a lot of places I talked to.

They did a fine job at a reasonable price installing the exhaust system (which I brought in) on my ’67 Lotus, which was not a simple job. Dirk was easy to work with.

Had my mustang towed there. Radiator was cracked. He fixed part in 2 hours and prices are affordable! Very good work, friendly and smart. I would highly recommend this place to anyone! Thank you Dirk

Outstanding work. Owner Dirk and staff did an exceptional
Custom muffler job for me. Thank you. Craig Oeterson

Clipped exhaust on our 30′ RV in the driveway on a Sunday; emailed Dirk and Ismael and they offered to work on it Monday morning. Dropped off 7:30am Monday and they had it ready by 10. Very helpful, ethical estimate and great work. Highly recommend!

Fleet Transportation Solutions out of Los Angeles, One of our trucks had a Tail — Pipe Melting the Mud Flap Problem? Our Driver stopped by to see if this is something that could be Fixed. Nice, Pleasant Top Notch Professional Employees, Had No Issue to Correct this Problem. They Redirected The Factory Tail Pipe in a Professional Manner, Our employee was in and out of their in a Timely Matter. And Had A Full Size LIFT to Accommodate our Dodge Ram 5500 Crew Cab 4×4. Our driver was Very Pleased they Took Great Pride in his Work Truck. Thanks American Muffler & Radiator For a Job Well Done. Hoping to Due Business Again Soon.

Got to his shop 5min before closing. He was rude and unaccomodating. All I wanted to know is if he could help me or not and if he could, how much. It was clear he didn’t want to help me so I took my business elsewhere.

Dirk doesn’t like it when you bring in your own mufflers, I went in with two super 40 Flowmasters that I bought off of Amazon for my Dodge Magnum, and since I did that he was going to charge extra for the install since he couldn’t mark up the price on the mufflers, seriously, it probably would of only taken him 45 minutes to do it, but since he was marking up the price just because I brought my own in I left. He was going to charge 150 just to cut off the old ones and put new ones in the same place. Competition Muffler only charged me 100 for the same job. Also a side note, when I was talking to Dirk about the install and asking if he could match the price of Competition Muffler I told him that in a couple of weeks I would be coming back with my wife’s Yukon for a exhaust system, but he didn’t seem to care about it. So not only did he lose the business on my Dodge Magnum, he also lost me coming back in for a full cat back exhaust system on the Yukon. Not a smart move there. So i would definitely recommend Competition Muffler over this place any day.

The rear muffler had decided to jump ship from my ’86 Jetta I brought it and the car in and Dirk and crew cut and bent a new section of pipe for between the front and rear muffler… along with some welding and three new donut hangers and I was on my way in half an hour… all for just over $ 100! Great job guys!

I had new mufflers put on my 03 gt by them and they really did a great job in and out in 30 minutes. They do great work Dirk is down to business and really wants to make sure your happy with everything they do. Highly recommended!

i brought my modified jeep over there and they fixed my exhaust 3 years later still no issues. thank you for you help

The men there give great advice! They really know there stuff. I was going to get my car strait piped but instead kept the muffler I already had on which is a flowmaster 80.

I had the exhaust on my 2004 Silverado replaced by Dirk last month. He replaced a Magnaflow system with a Flowmaster 70 series cat back system. The installation was clean and he did it on a Saturday in less than 2 hours. Had the muffler and the 2 ½ tailpipe in stock and custom made the pipe from the flange to the muffler. Price was fair, service was great. I will use him next time I need any exhaust work.

I assume the work done was up to par, so far no problems, but the job cost $ 125 here, down the road it only cost $ 80. Yes, I was in a rush so I made the choice to stay and have the work done here, but just know that it might cost more than other muffler shops. I called 4 other shops, both in T-​O and in the valley and they all quoted me $ 80 for a cat change. I made the mistake of assuming this shop would charge the same… Never assume.
Like I said– the service seemed normal, and I brought my own part. It was just really expensive.

I had to have 3 catalytic converters replaced on my 1985 380SL. Due to CA regulations, this is not a quick and easy job.
I found Dirk to be a no nonsense staright shooter. He got certified parts and delivered on time.

My favorite local Muffler shop! Great work, reasonable prices, done quickly and accurately! Don’t hesitate if you need any work done by them, they are the professionals!