Need to have catalytic converters replaced on a '93 300ZX and CARB compliant in California, had a great experience, quality work on suggested pipe connection configuration and welding, pricing with installation was reasonable, and I was happy with the overall result. read more

Marcos is the most honest and friendy shop owner! He knows how to talk to customers and the best price in town! I am now a loyal customer to his shop. Did a fantastic job with my son's car. Thank you Marcos! read more

Marcos was the BEST! Quick and affordable repair for my FJ Cruiser and easy transaction . read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

See all

Came in with an exhaust for my Audi s4 and it didn't quite fit. With some simple modification to the exhaust it fit perfectly with no trouble and was done very professionally. Marco gave me a great price after working with my budget and I was very happy with the whole experience. Car sounds great now! read more

My cousin said to go to Super Tek after the cat was stolen from my F350. The replacement had to conform to California specifications or it would not pass initial smog station inspection. The owner was VERY helpful, friendly and knowledgeable, with good quality professional installation. I just had another cat replaced on another of my trucks(1981 F150 that wouldn't pass smog/after 5 tries) they found my cat. converter had partially melted(too rich on fuel) and once again they did a great job and it passed with flying colors. I am restoring some classic trucks and I will be taking them to Super Tek as well. Once I find an automotive shop that does good work I become a long time customer and recommend their service. read more

Marcos was very professional, eccentric, and honest. I called him last minute, wanting my muffler added back on, and he offered to add it on for $160. He worked very fast, was very good at his job, and had some stories to tell. He is a very nice and honest mechanic; I highly recommend visiting this shop for any exhaust-related needs. My car sounds great and runs well, too! read more

Ordered some Top Speed Pro-1 Stainless Steel for my G37 convertible and they weren't even close to fitting. Loved the sound so I had Marco work his magic. He made it look easy and didn't waste any time getting down. Welds look great and he had me out of there in an hour. read more

See all

Definitely come here if you want quality work for a good price!! We came in spur of the moment on a Thursday with some muffler tips that I had already selected for my G37 sedan. Marco was incredibly friendly and EXTREMELY THOROUGH with his work! He checked his work 5 times and made a few micro adjustments as well as confirmed with me multiple times that I was happy with the way the muffler tips looked all before laying down the first tack welds. All in all he did such a great job that I actually think the fitment is OEM quality. Amazing work Marco! Absolutely love it and will definitely be returning in the future for more custom work! read more

Super Tek Performance - New tips installed. So happy - Auto Repair Near Me - Glendora, California

Marcos is awesome! I gave him a called and ask if he could install my ets catback exhaust on my 2022 subaru wrx. He is a true professional and pays attention to every little detail. He made sure the exhaust was well installed and then applied a gloss spray to make the system shine! Highly recommend Marcos for any of your custom exhaust needs! read more

See all

THIS IS THE PLACE TO GO!!! Brought in my brand new challenger and Marco made it happen!!! This guy knows his stuff, 25 years, and he's just a real treat to work with! He's professional, respectful, knowledgeable, and most importantly he's honest!!! He's won my business and hopefully my friends will come when I recommend him. IF YOU WANT YOUR VEHICLE TAKEN CARE OF AND HAVE SATISFACTORY RESULTS, MARCO IS THE MAN!!! Thank you Marco, my car is sounding like a beast!!! read more

It's my second time here, the last time was with my 2017Mustag GT and now our newish 2020 Jeep Grand Cherokee V8 Limited X. Quality work at reasonable prices! Also made sure I would be satisfied with the position of muffler tips. Great attention to detail. Muffler delete or any other exhaust-related work, I highly recommend Super Tek Muffler. read more

Super Tek Performance - Muffler delete. - Auto Repair Near Me - Glendora, California

Went in with a full catback exhaust system that didn't exactly fit my car, Marcos explained to me in detail what needed to be done to get it installed and gave me a price. He made custom cuts and welds to make everything fit nice and snug. The guy knows what he's doing very knowledgeable and just overall honest mechanic. I definitely recommend coming down to his shop for any custom exhausts, fair price and meticulous work. read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

Me and my fiance have been comming here since 2016 and we have a lowered Honda civic 14 coupe and we are very picky of who works on our car and recently we got coilovers done and Marcos took care of us and was able to explain to us on why we were hearing rumbling noises that we've been hearing while driving our car. He was able to fix the problem at a reasonable price in a timely manner. Really recommend this place to anyone that has a lowered car and/or muffler!!!! read more

Super Tek Performance - The coilover and muffler aren't touching each other anymore as they were before. - Auto Repair Near Me - Glendora, California

Marco... This guy is super cool! Called him Friday noon and told him If he's available Saturday cause he's open on that day. He told me come Saturday morning at 9 and I was like haha I'll try I'm not a morning person. 9 am I was there and I was the only one there no one else. I was really happy! So he asked me about what want for my exhaust. Got a Lexus IS 200t. Mostly want a muffler and resonator delete with custom tips. So he told me to start small of sound testing. We started the muffler and it already good. I said you know what marco let's go for the resonator as well and he was hyped about it. The guy took his time but man he literally perfected the exhaust pipes and the tips. The result came out outstanding! Im super fucken happy! I gotta say you gotta check him out and and ask what you really want cause he'll give you what you need. This guys is great! read more

Super Tek Performance - Did a muffler and a resonator delete with custom tips. Came out with the perfect sound that I wanted thank you Marco. - Auto Repair Near Me - Glendora, California

Marcos was awesome, honest, and quick. Drove by because I had a rattle in my exhaust. Another shop diagnosed it as a catalytic convertor at a cost of more than $3k to replace. Marcos took a look, noticed it was a couple of brackets, welded them up, and I got out of there for minimal cost. Marcos saved me a bundle! Hard to find someone honest, he is your man for exhaust issues. read more

Buddy took care of my car Put my stock muffler on and got me out fast no appointment sat morning read more

I chose this muffler shop to fix my exhaust leak on my old jalopy by looking over other reviews and how meticulous the shop is kept. Once I got there, the owner/tech Marco was already working on finishing up another car which I was very impressed on how accurate and centered of the bends and welds. This shop is for people who are into cars, hot rods, euros, and even repairing original OEM exhaust that's riddled with holes and patches for old Japanese car. I was not disappointed and am completely satisfied. I highly recommend Marco to any car enthusiasts! I'll be back with my other cars. read more

See all

Marco is the man! He's my go-to guy whenever I need muffler/exhaust things done to my car. He's worked my on VW GLI twice already and in the past when I had a 2007 Honda Civic Si, he worked on it three times (kept getting better mufflers). Anyway the last time I went to him was back in 2012 and I felt it was time to replace my muffler since I'm kind of fed up with the slight drone noise I get when driving PLUS the tips were filthy black, no matter how many times I clean, wax, sand, polish, even dremel the tips, they always end up black a couple days later. (Reason why they did was because I didn't have a cat) but anyway I wanted another muffler that had a shiny polished canister to it and so I bought one and received it yesterday and went straight to Marco in the morning. Let me tell you about this guy. Marco does not give you pressure or does not become a sales person to you, he gives his honest feedback AND also does exactly what you want. I wanted the muffler at a certain position and while my car was up in the rack, he was test fitting the muffler and wasn't positioned at the spot I wanted it to but he found a way to position it and that's from removing some hangers that's attached to the car which hooks onto the stock muffler, well he removed that and was able to position it at the way I wanted it to. And once it's positioned at the way I wanted it to, then there he goes, he went right to work and cut some pipes and bent it to go into the muffler. He also installed some hangers onto my new muffler in which it's pretty solid. Took him about a little over an hour to do the work. And I'm really impressed and happy with his work. Marco does great welds. The way they look are pretty clean, I've seen some welds in the past from other ppl but comparing them to Marcos, the other peoples welds look like crap. Marco's work is really good. His pricing is also pretty good as well. Of course if the task is a little complicated, he will still be able to do it the way you want but with a complicated task, more money will be involved BUT don't let the stop you. It's still worth it. I love my new shiny muffler. Plus the drone isn't there anymore, I have a deep quiet tone on my car now. I totally recommend this Marco if you are looking to get any exhaust work done to your car. Any type of vehicle. He will do it. read more

See all

Love the work that marco did, very friendly, explains as he goes. Called ahead lucky to get him on a none busy day. Definitely coming back if i ever need help with my exhaust. read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

See all

Great job! awesome results got mine back in 2014-2015 flowmasters i think for my firebird v6 but i have since sold it but they exceeded my expecations! great job! read more

See all

Wow!... I was getting ready to go to a shop in Rowland Heights when I came across THIS business on Yelp. Someone who had a problem with another shops screw up came here to have it fixed... and he raved about Marco. I decided to give it a try and get a quote. And I'm glad I did. Marco is probably the Friendliest mechanic I've ever met! I had a part number that was recommended to me from the Flowmaster web site. He said that was fine but I would be ordering pipes that I already had on my truck. He then raised my truck and 'patiently' showed me two examples of my muffler options. (Anyone who has had mufflers put on knows what that entails). and NOT ONCE being pushy! Once he got started I was out of there in an hour. And the price was perfect! I can't say enough about my positive experience at SuperTek Performance Muffler Shop. GREAT meeting you Marco! read more

Marko always does a fantastic job, and fixes the shotty work from other shops. Great dude and amazing exhaust shop.

Marcos is a blessing! Not only is he honest and reasonable, he's understanding. Having both my catalytic converters stolen within a year, Marco was able to help me quickly and the quality is superior. Very grateful for encountering this business when unfortunate situation arose. You won't be sorry, he will take care of you with professionalism too! read more

Marco is the best. He was super nice and friendly . He saved me so much money as opposed to go the dealership . I would highly recommend going here !!!! read more

Parking lot is rather tight, steep ramp coming in so warning to lowered cars. The owner Marco is legit, quoted me a fair price to fix my E36 ebay special exhaust and was quick about it too. Would recommend calling ahead to make sure he has time first! read more

awesome service got my muffler delete on my hyundai sonata and it sounds excellent.. for a good price marcos did a fantasic job 10/10 recommend.. explained everything he was gonna do! read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

So I was tired of my Corolla sounding like a Prius when starting the car and driving. You know the sounds a Prius makes right? Just listen to the wind blow and that is louder than a Prius! Lol. So I decided to purchase a little something something for my car to add a little sound while I'm driving. I didn't even think twice of where I was going to go. Super Tek worked on my previous Corolla to add a muffler and did a great job, so I came straight here. Marco, the owner, even remembered working on my older Corolla too. So I decided to get a Magnaflow exhaust. They also have a wide variety of exhaust tips. I chose one for the exhaust. Marco did a great job installing the exhaust! He was not rushing the install at all (even though technically they were already closed). He really did make sure that everything is perfect before welding some hangers to the exhaust. Definitely happy how it turned out! It looks great and it sounds mean! It's nice to shock people because they aren't expecting that the sound is coming from a Corolla! Will I be back? You know it! Definitely will keep Super Tek in mind if I need to add some extra grunt to the ride! read more

Wow.. I'm extremely satisfied with the work he's done for my 2005 Lexus IS300. Thumbs up to Marcos for getting the job done all by himself. Like everyone else said he's a one man crew. Marcos is a honest mechanic, and gets the job done with perfection and patience. Before he began working on my car, he wanted me to make sure how the car sounds without the muffler (I did a muffler delete with 2.50 straight pipe), took his time to explain what needs to be done in order to complete the service. As I was patiently waiting for Marcos to finish. He really does what everyone else's reviews state, he literally takes his time to measure and perfect the job in order for you to leave the shop without any problems and with complete satisfactory. In the end, the car is exactly as I wanted to sound, and the optional exhaust tip I chose definitely blended in making it look "OEM". Marcos's welding is by far the cleanest, a lot nicer than Valley Muffler. Definitely will be coming back to Marcos if I ever I had other ideas in mind, or pick up a brand name exhaust. Plus, I highly recommend his shop for any exhaust related work. Thanks again Marcos! read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

See all

The second I walked in I was greeted by the owner, Marco. Super friendly, very nice guy. I was looking around at his shop and amazed at how clean his place was. Every corner, spotless, all the walls had neatly organized tools. His office was immaculate, even the bathroom was super clean. After he looked at the car, explained what needs to be done, and advised on calling the dealer instead of fixing it. Needless to say, he was sincere, did not want to charge me for something that he could have, and I appreciate that. Very honest individual, and now he has a loyal customer for life. read more

See all

Wish I would've found this place years ago. You can't trust just anyone doing work on your vehicle. I was going to take 96 Bronco to another shop that I've been to before, but my gut feeling told me that it wasn't going to be right. I google searched the area for other shops and decided to stop by. If you want a place where you'll be in n out in 15 minutes, cut and weld any size muffler and stuff the joints with solder, this isn't it. Marco pays attention to detail and you could appreciate that. Marco did an outstanding job, this guy knows his craft. Great sound coming out this classic. Thanks, Buddy! read more

Took my car in this morning 9am Marco jumped right in my muffler needed some adjustments and welding also one of my tips needed some TLC i was out in less than a hour will be back with any and all my exhaust needs. read more

Marcos had excellent customer service. He really went out of his way and took his time to make sure everything was lined up and looked good before welding anything. I shopped around, and although he wasn't the cheapest he was reasonable with his price. I decided to go to him because of all the good reviews, and I can say they were dead accurate. His work ethic was far worth his price. I had a Flowmaster Super 10 series muffler and Flowmasters black stainless steel exhaust tip installed and I am beyond happy with the look and sound of my truck! read more

See all

Marco did a great job. Very communicative and shows you what he needs to do. Very honest as well and will only do what he thinks is best for your car. I was very happy with the results and would recommend to anybody needing exhaust work in the area. read more

Marco is absolutely amazing! He helped out with his expert knowledge and made a great decision with my mufflers/exhaust setup. He is honest and affordable. Would definitely recommend and will come back for any other muffler/exhaust work. read more

Marcos is the best PERIOD!! If you want perfection & the best welding quality, Marcos is the guy to see. He has done several of my cars/Trucks exhaust mods. He always makes you feel like family with his positive personality. - THANK YOU MARCOS read more

See all

I wish I could give more than five stars. Marco helped me out big time with an exhaust fitment issue. He works quick and is very good at what he does. The modifications he made gave me just the right amount of clearance I needed. I'll gladly come back and tell everyone I know to come here for all their exhaust needs. Thanks again Marco! read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

If you need any exhaust repairs or a new sporty sounding exhaust, this is the place to go! Checked out my truck since I had a small leak, but fixed only what needed fixing. No up sales, just pure honesty. My truck sports a new muffler and sounds great! read more

I was looking for a place to take my car to. I read reviews on lots of places but I've learned from past experiences that sometimes everyone has a different experience. BUT I called anyway based on all the positive reviews. And I was truly impressed!! Marco is the man!!! Prompt, responsive and extremely professional!! He will be my go to guy with anything that had to do with exhaust!! read more

Super Tek Performance - Auto Repair Near Me - Glendora, California

Thank you Marco for your great advise, and more important for letting me hear 3 different mufflers on my 2016 f150 with TT Ecoboost. He gave me many options, and even some safety advice for the kids. I was looking for a throatier sound with minimal drone and a black tip to go with black truck. He delivered on all, cold start sounds deep and throaty, and when you pound on the throttle has a nice deep note without sounding like my old rice rocket I used to have. I wasn't expecting a v8 sound, but something more than I had which was practically silent...lol. not good when people ask if you have a hybrid...lol. This guy is fast and wks solo, and the price was way under what I expected to pay, he even took 25 dollars off the tip cause he says it's a package deal now. Very happy I drove in today. read more

Marco helped me out with my Mk4 Gti, very friendly and honest.. kept the cats, took off the original exhaust and replaced it with dual black powder coated exhaust tips. Car looks and sounds great, would definitely recommend! read more