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April 2025 by Andrew S.
Jerry and Thomas are great. Super knowledgeable and professional in the delivery of their work. They don't stop until they get it right and I appreciate their commitment to their customers. Pricing is very reasonable also. Got my 5th gen 4runner raised and put 285s on them and it came out looking and feeling a lot better than I anticipated. Definitely coming back for any type of upgrading and maintenance needs. Highly recommend Flex Function. Thanks fellas.
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February 2025 by Gabriel G.
I was researching off road shops for months before I even had any money. The time finally came where I was ready, so I started to reach out to a few local shops in the east bay to ask questions and get some information but many either didn't have the time or didn't want to help new customers. I then started looking outside of my local area and started sending out emails. Thomas was super helpful and recommended a few options within my budget. I finally pulled the trigger on his recommendations. I had originally installed the Bilstein 5100 all around on my 5th gen 4Runner but is was sagging due to added weight. So I went with Bilstein 6112 (heavy load) with SPC UCA's and 5100 in the rear with Dobinson's 325 coils. Effectively giving me a 2.5 front/2.0 rear and the truck came out EXACTLY how I wanted. The guys even went as far as to loan me a set of rear coils till my new coils came in and notched the aftermarket front skid plate because my KDSS was hitting it. I didn't even expect that level of customer service, it completely blew me away. Thank you guys for the awesome experience, You definitely will get my repeat business!
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December 2024 by Gary T.
All requested work were completed on time and within budget. Did a thorough inspection and performed the recommendations with reasonable price. Very impressed with the work and attention to details.
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October 2024 by Gary G.
Excellent work and fast! Took my 5 series in for a 4 way rim swap and they had me back on the road in less than 1 hr. Roadforce balance was perfect too. 5 star experience, nice guys too.
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October 2024 by Jianan L.
Highly recommend for anyone getting their car lifted! I bought the Journey Offroad 2" lift kit for my Highlander and contact a bunch of shops in the SF Bay Area for a quote for installation. One of the shops I reached out to was Flex Function. Straight from the first phone call, Jerry showed me how much he cared about and valued their customer. Even though they haven't installed a Journey lift kit before, they are aware of the brand and have tons of experience with installing other kits and even modifying cars. On the call, Jerry looked through the Journey lift kit product page and reviewed the installation procedure and very clearly communicated to me everything I need to know about the procedure. I received a quote and made an appointment with them for the following week. I could tell the whole crew including Jerry, Thomas, Koi, and other folks, loved and cared deeply about what they do. I definitely made the right decision going with them for the install, and would highly recommend them to anyone looking to get their Highlander or other cars lifted.
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September 2024 by K Kumar
Great shop, great service, great people!
I was long overdue service on my 2007 Lexus IS350. I got the car back in 2017 with 85k miles and had basically only done oil changes all the way till now (125k miles, August 2024).
I wanted to get the car ready for another 100k miles without any headaches. I saw some oil leaking in my garage and wanted that inspected and fixed as well.
Thomas advised me to get some additional items done since we already had the water pump and transmission fluid on the list, and I agreed. Worry free for a long long time now!
I really liked how they send you pictures on what they found, and show you the work they did.
Here’s everything I got done:
- Cabin air filter replaced
- Brake fluid
- Engine oil dipstick tube seal replaced
- Differential fluid change
- Transmission fluid drain & fill
- Transmission filter replaced
- Transmission pan gasket
- Coolant flush
- Water pump & Serpentine Drive Belt
- Radiator replaced
- Upper radiator coolant hose replaced
- Lower radiator coolant hose replaced
- Radiator cap replaced
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September 2024 by Shaoqian Chen
Did awesome job aligning my rigs on 40s?
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August 2024 by Keshav K.
Great shop, great service, great people! I was long overdue service on my 2007 Lexus IS350. I got the car back in 2017 with 85k miles and had basically only done oil changes all the way till now (125k miles, August 2024). I wanted to get the car ready for another 100k miles without any headaches. I saw some oil leaking in my garage and wanted that inspected and fixed as well. Thomas advised me to get some additional items done since we already had the water pump and transmission fluid on the list, and I agreed. Worry free for a long long time now! I really liked how they send you pictures on what they found, and show you the work they did. Here's everything I got done: - Cabin air filter replaced - Brake fluid - Engine oil dipstick tube seal replaced - Differential fluid change - Transmission fluid drain & fill - Transmission filter replaced - Transmission pan gasket - Coolant flush - Water pump & Serpentine Drive Belt - Radiator replaced - Upper radiator coolant hose replaced - Lower radiator coolant hose replaced - Radiator cap replaced
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August 2024 by Jeff Provost
Took my BRZ track car for a 4 wheel alignment and am very happy with the results. Jerry is solid, knows his stuff, isn’t rushing around and took time to do the job right.
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April 2024 by Alex Caruso
I brought my 2018 Honda Accord in for routine maintenance. Tom and Jerry were quick to respond to my inquiry and got me in and out quickly. I highly recommend Flex Function if you want to take your vehicle somewhere dependable and know the job will be performed correctly.
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March 2024 by Tyler C.
Thomas, Jerry, and the team do great work. Earlier this year I brought my 3rd gen 4runner to their shop for a complete inspection and after speaking with them about the priority of needs, I had them update much of my front end suspension. These guys are extremely knowledgable when it comes to toyotas and understand the the realtionship between these vehicles and aftermarket parts. Other toyota specialists I have worked with in the past can sometimes roll their eyes at the wear and tear placed on these vehicles due to the abuse they can take from drvining offroad and replacing OEM parts but Thomas and Jerry are focused on providing great customer service and flawless execution of their craft. I just bought new tires and despite having free lifetime alignments at a chain tire shop, I brought my 4runner back to Flex Function because I know these guys will get my vehicle dialed and will provide feedback I can trust. I won't be taking my vehicles to any other shop going forward.
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February 2024 by Jeff H.
Really glad I found Tom and Jerry (yes, its truly them) at Flex Function. I had a full shock/spring set to be installed that needed expertise for proper level and install details, doubt I ever would have gotten this done right at home. They got me in quickly, left the truck there for a day to also install an aftermarket exhaust, and they were great. Perfectly done, aligned in spec, exactly how I was hoping. They take the time to talk it through with you and also contacted the shock vendor to determine the best approach (eg the process and springs approach). Flex Function will be my first stop for all my truck needs and they know BMW's too - perfect!! Thanks guys, really appreciate your quality work!
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February 2024 by Sina Mohseni
Great auto repair and offroad shop. Very experienced, helpful, and responsive.
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December 2023 by Christopher B.
These guys are phenomenal. I have been to many shops over the past 15 years and Thomas and Jerry are hands down the best. They have worked on my 2021 Gen 3 raptor multiple times, which have included installing collars and spacers, mounting and balancing tires, installing springs and performing alignment. I don't trust anyone else with my truck. You won't find any place that cares about their customers and the work they perform more than FlexFunction. These guys are honest and the real deal!
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October 2023 by Wayne Marci
Jerry and Thomas are top-notch, keep it 100, dudes. Psyched to have them working on my overlanding rig.