found this business online and went for a PPI diagnostic. The people running shop are so helpful,…read morenice, and made the process a breeze. I will definitely be coming back here for future work. 10/10.

Awesome service from Aaron and Alvin worked on my G82 m4 so many things they did from modifications…read moreto routine service cant even list but it was all done with utmost profession and care and at a fair price

I see George responded to my review after several months. It's unfortunate we have business owners…read morewith poor work ethic and nonetheless customer service skills. It appears you never wanted to work on my block, after you stated that on your response. Potential customers this the perfect example of his lack of communication. This individual collected my money and Engine with no hesitation. Thanks for clarifying george. I'll be sure to add you to the forums and blogs on what shops to avoid. Your father must be proud of you, for tarnishing his shops image and reputation. I hope you improve your work ethic and work. God bless.

Jr did a great job rebuilding my 454 engine. Very thorough and detailed and great communication…read more Thanks again!

Fernando and his team did a great job. They were nice, courteous, and efficient. Fernando's prices…read morewere outstandingly reasonable. They changed the valve cover gasket and washed the valve cover and engine parts in a hot tank plus they decreased the parts. Some mechanics don't bother with that much detail, but they go the extra mile in customer service. They have a comfortable waiting room with AC. The entrance is in the alley. Fernando's shop is very clean. We are so happy they worked on our car.

Excellent service, quality parts and fair prices , but the greatest value is Fernando is…read moretrustworthy and has proven to be honest and he stands on his shops work. I highly recommend.

I wanted to put an exhaust on my new truck, so I asked Scott at Montebello Lube & Tune (another…read moremost excellent business!!) for a recommendation. He said to call Fabian at B & K Radiator & Muffler. I showed up and Fabian asked what I was looking for sound-wise, and he ran down my options. He even removed my stock muffler and let me hear all the possible muffler upgrades to help me make my decision. Who goes the extra mile limke that? Fabian does! Add to that, when it came time to decide between A or B, he never tried to over sell me. He told me honestly that the less expensive option was every bit as good as the "name brand" muffler, and that it has a longer life span as well. Decision made. They installed the muffler and my Ford sounds great! The price was right, the service was excellent and most importantly, honest. That means a lot. Exhaust or radiator issues? "Go now to the choppah!!" and see Fabian at B & K Radiator & Muffler. Thank me later!!

Our exhaust got damaged, and I was about to send our car to a mechanic, but my coworker told me to…read morego to "go to a muffler store. Just pick one and go. " We just needed it welded back on. I quickly did a Google search, and the first company I called was quite rude and pushy telling me they're closing soon so I can't tow my car that night (I wasn't going to anyway, but how rude) so I tried B & K. Fabian answered and was so nice. He actually told me to hurry and come before he closed and that he would take a look. I called on Friday night, and I was trying to find somebody and give them a heads up that I was going to tow in the morning.... Fabian won my business, obviously, and won my review. The whole process took a literal 10 minutes to weld. Just goes to show what a little kindness and good customer service get you. Maybe the other place was over packed and didn't care about losing business? If so, good for them. Either way, I strongly recommend B & K to all of you looking for great, quick, friendly service.

Cesar will fix your car, he is knowledgeable and is an expert mechanic. He fit me in on a Sunday to…read morediagnose my vehicle that was having electrical issues and was able to fix the problem. He is professional and a nice person. I highly suggest him for any of your auto needs!

Cesar is terrific! He thoroughly checked out the wiring throughout my '97 Land Rover Defender to…read moreidentify the reason why the starter was not receiving the necessary voltage to start the engine. He identified several wires that were not operational and traced the issue to a small ground wire that was disconnected. I will no doubt work with him further to update my head unit and add a back up camera. I found Cesar to be quite friendly and a joy to be around.

Love the service here! My car always comes out better than it went in, and always a great price! If…read moreyou ever need work on your car they can do what you need in a timely manner!!

I never write reviews but these guys get down 10/10 quick and easy service.................read more

If you're looking for great prices, professionalism, and honest work ModifiedMotoring is the spot…read more They inspected my car and helped me get my S2K, fixing loose components that the other shop in Azusa overlooked, didn't check for. They'll advise you on what parts look like they're going out, how long you can expect to use it efficiently for, and advise what parts can replace it. Great experience all around. Saved money, honest work, and the owner is super helpful. - Fixed my BC Coilover Preload Install Error by the previous owner - Fixed loose springs (previous installer) - Fixed Endlinks being loose - Installed Mishimoto Radiator - Installed K&N Intake - Advised leaking exhaust (poor welding by the other shop)

Came down to them on Thursday and I'm glad I did. They were able to install my carbon fiber spoiler…read moreand they did an amazing job. Everyone was kind and helpful. Their work is great! I definitely recommend and I will be back for any future installments on my car!

Was recommended by a friend to use Cornerstone and was not disappointed at all. Originally I had…read moreplanned to take my car into their shop but due to my busy schedule they were able to make a mobile repair instead and came to my house. Danny and Fernando were my mechanics and they both arrived on time which is a great first impression. Danny and Fernando were friendly and very knowledgeable in their craft. All around great guys and gets the job done. I was told how long the repair job would take and left them alone to work on the car and headed back inside my house. Once everything was done, Danny gave me a call, emailed and texted me my invoice, handed me my keys and everything was done ahead of schedule. Honestly one of the best auto repair/mechanic experiences I have ever had. Pricing was fair and Danny was honest about everything, price, what was needed, what was not needed. It is very hard to find a good honest mechanic so if you are in need of one, I HIGHLY recommend Danny and Fernando of Cornerstone Mechanics. You will not be disappointed.

Great work very knowledgeable. Easy to get a hold of. Got it right the first time. Affordable…read moreprices very competitive with other places.