1. Juju Built Engineered Performance

    1. Juju Built Engineered Performance

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    Upland, CA

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    Juju Built Engineered Performance

    4.9 (78 reviews)

    Services - Juju Built Engineered Performance

    Auto engine repair

    Oil changes

    Routine automotive maintenance

    Juju Built Engineered Performance Photos

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    Reviews With Photos

    2023 Honda civic si sedan,  turbo wiring harness repair and spark plugs......
    Liana Q.

    Man I thought I would never get my car fixed, I was referred to juju built by a friend and my car was fixed in one hour vs 3 days and the difference in cost was let's just say $ 1,500 difference and you'll never guess who the competitor was ....... Honda dealership in Loma Linda, ca. smh George is the goat by far highly recommend his shop to anyone with a Honda or Acura type R or si. And more..

    Choices for oil
    Angel G.

    So I've been dealing with George and Louie for over 7 years with ALL of my car needs my bmw the Mercedez my Acura I had them fully build as well from ground up I have all of my family and cousins and even friends come here and every single person I sent has never been disappointed with the work they get done here as well as the pricing here is unmatched to anywhere else , the quality they give is a 10/10 from the work they do to the customer service they don't scam you here for your money they will even show you the price of cost they pay for your part and what they charge as well for doing it a lot of shops won't and a lot of shops buy parts supposedly they say you need but at times use old parts or just do it to charge you more then next thing you know a week or month later something else is wrong , well here no they don't sugar coat anything as well and tell you exactly what's wrong what needs to be fixed first how much time you have left before let's just say they told you another part will fail soon they'll be like well you gotta month or 6 months before replacing it Becuase they know it's expensive at times to come out of pocket for car maintenance so they work with you and make sure your able to get around regardless of the fact ! Again I promise you anything you need they can definitely get it done !!! No excuses and cheaper then what a DEALER OR YOUR DEALER will charge you and they have great choices for oil here themselves I always use Torco on my cars as well as my girls F Sport ! And another thing they are now doing window tinting and PPF upon making an appointment as well make sure to check them out they just newly updated the shop come by and check them out again I promise you won't regret coming here you'll never go to another mechanic shop after coming here guaranteed!

    Ready to roll after a coolant hose leak was fixed.
    Mike L.

    Top notch mechanic work with extraordinary skills and great people. I had my 93 Acura serviced here twice for some leaky fluid seals and suspension parts installation. The price that was quoted was considerably less than another specialty JDM shop. George and Louie took care of my car as if it was their own. They take great pride in explaining everything so there are no issues. I was able to meet the extended family and enjoy some good food with some deep conversations about how life can be sometimes. I highly recommend giving JuJu engineering a call for any type of car related issues. Although they have built some monstrous race vehicles, they are still able to take care of all customers with respect and honesty. I know I will be coming back for anything auto related in the future.

    lol how cute they have a golf cart!!
    Van D.

    It was late one evening when I was running errands and picking up dinner for my parents nearby, when I heard the strangest sound from my car. It was like a grumble... Ahhhhh!! Was it the engine? What's wronggggg?!?! Well when I parked, I was awkwardly crawling in front of my car and I saw that my under carriage was dragging. I opened my trusty Yelp app for an Auto shop and focused the map on the nearby radius since I didn't want to drive too far and drag my under carriage to the point of unfixable damage. Then I narrowed the search down even further for "open now" businesses. Most of the auto shops that appeared indicated that they closing in 5 minutes... all except JUJU BUILT ENGINEERED PERFORMANCE!! Yayyyyyy!! But wait... It looks like they do some fancy stuff, like the turbo engines and other fancy upgrades... I thought it was wise to call them first to see if they would handle a simple *under carriage* dilemma. George picked up and asked what type of car I drove -- Honda Civic -- and he instantly knew it was a plastic under carriage. So he told me to swing by for them to access the situation. George explained how they can reattach my under carriage if it was in good shape or completely remove it if it was too damaged. I really like how George laid out the possible scenarios based on what I described. When I got there George and Llyod were super nice. Llyod welcomed me into the shop to avoid the cold to wait while the were wrapping things up with their previous customer. Then they took my cute little Civic in and explained to me how under carriages could drag when you take your car in for maintenance and a clip isn't reattached correctly or if you ran over something. I'm not sure what happened with my under carriage. After quickly lifting my cute little Civic, Llyod slid under and swiftly reattached my under carriage. Yayyyyy!! And they wouldn't even charge me!! How sweet!! George and Llyod really saved me and I am eternally grateful!! This is a super nice and honest auto shop. In addition to the fancy engine work, they also do your simple maintenance like oil changes. I completely trust them with my car and would definitely come back for routine maintenance services in the future.

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    3 months ago

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    4 months ago

    Business owner information

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    George S.

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    4 months ago

    Best spot in the IE hands down, if you need anything done George and the guys are the ones to go to, quick and professional!

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    4 months ago

    Great and reliable place to get service done. Most definitely recommend. Great customer service as well.

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    5 years ago

    I don't take my cars anywhere else but here! The boys always take care of big brother eric!

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    5 years ago

    Best shop around hands down, George and Louie are very knowledgeable. I will continue to come here For any type of work I need for my car

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    7 years ago

    They were super fast had great customer service and George helped me fix my light! Highly recommend this place.

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    7 years ago

    Had a few aftermarket parts installed on my Bmw. Staff is laidback and straight forward. Will be using them for all my future car work.

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    Page 1 of 2

    Ask the Community - Juju Built Engineered Performance

    How much does a smog check cost?

    How much do you guys charge for a tune up?i have a 2004 Nissan 350z. Thanks

    Please contact me at 6614924309

    View All 7 Questions

    Review Highlights - Juju Built Engineered Performance

    smh George is the goat by far highly recommend his shop to anyone with a Honda or Acura type R or si.

    Mentioned in 49 reviews

    Read more highlights

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    I had an issue with the A/C in my 2018 Honda Civic where the passenger side was blowing cold air…read morebut the driver side was blowing warm. After getting nowhere elsewhere, I brought it here and spoke directly with Mike. Mike actually took the time to listen to the symptoms and diagnose the problem instead of immediately trying to sell me expensive services I didn't need. They scanned the vehicle, found a B1235 code related to the driver side blend door actuator, and explained everything clearly. What impressed me most was the honesty. They diagnosed the actual issue and gave me a very fair price to fix it. No pressure, no upselling, and no guessing. Just straightforward, professional service. It's hard to find shops that value diagnosing the root cause instead of throwing parts or expensive services at a problem. Because of this experience, I am 100% going to recommend Mike and his shop to all of my friends and family. Thank you for being honest, knowledgeable, and treating customers the right way. Highly recommended.

    IF YOU CARE ABOUT YOUR CAR AND YOUR TIME DO NOT GO HERE !! I took my car in for a simple oil pan…read morereplacement and engine mounts. They failed to properly seal the oil pan twice and I had to take my car back 3 times! the second time they had used glue to seal the oil pan making a huge mess and voiding my warranty. Not only did it take them 3 attempts to finally reaper the oil pan they also over filled my engine oil by 2 and half quarts and the e fine mounts had to be replaced "again" cause it was quite obvious they never changed in the first place but charged me for it. Now my entire front suspension is compromised either due to them tampering or just the fact they had to drop my front suspension 3 times. Also their main tech isn't ASE certified and is just a "helper " AVOID THIS CHOP SHOP !!

    Alexander Complete Auto Repair  - My tire was so bad good thing I found these guys near my house had a used tire for a good price my new spot

    Alexander Complete Auto Repair

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    Oh I am so happy I found this spot. Great family owned…read morebusiness. I have had multiple issues with my cars. I recently had a kia that wasn't fixable they let me know and also didn't charge me for the work/parts they got since the car was officially de*d....this business stands by their work and they are trustworthy. Key note* they communicate with me clearly and I understand everything that they will do to my car. I am just a girl and idk things about cars lol but they still respect me so that's cool I have since brought in my new car and they are fast. It didn't take long for an oil change and overall check. This is my new spot indefinitely.

    0/10 do not comment this shop at all. The gentleman here "Alex" is incredibly rude and hostile over…read morethe phone and in person. I came to this shop months back for calibration, the device drained my battery while I was on the property and the man refused to help me. I was here stuck with my baby struggling and he he was being rude telling me to move my vehicle, as if I could it died. He didn't want to help me jump it so I had to call someone to come help me. Fast forward I scheduled another appointment because there's no other local provider unfortunately he stated there was no tech available the first time I got my vehicle towed to him then the second attempt he said there was also no tech available but he'd still assist me once we walked outside he completely decided to just refuse my service. When I've already been in contact with him twice, he agreed as we were walking outside then completely changed his mind!!! After the vehicle had been towed to him twice. Absolutely outrageous. Not to mention I had an infant child with me this man did not care just wanted to be rude straight up!

    Painter's Transmissions - Lowrider Magazine

    Painter's Transmissions

    (10 reviews)

    Was recommended to me by a buddy at work, busy spot but extremely reliable and trustworthy. Fixed…read morethe transmission on my work van and left it like new! Check engine light came on my daily driven truck, he ran diagnostics told me what it was and advised me that my truck wouldn't pass smog that way but wouldn't effect overall performance and wouldn't waste more gas was just a matter of not passing smog. Said ultimately was my choice to fix it now or when the time came to renew registration and a smog was required. Drove it for about a year with the light zero problems and took it to him when I had more cash and the tags were up for renewal. This guy is legit! Prices are not cheap for the work he does but he does have the overhead of a shop so it's understandable. Plus you leave with peace of mind with warranty on all the work he does. You get what you pay for and Painter Transmission is worth every penny and dollar Felipe quotes you. Thank you Felipe!

    I've been going to Felipe for roughly about 19 or 20 years now. He's the last of the honest to God…read moretrans mechanics. He doesn't BS you and always gives you options. I've never had any issues with any of my classic cars he's worked on and believe me he knows classic cars very well. In Feb 2024 my Chevy Silverado blew the rear differential and I took it to Felipe. He recommended that since I needed to replace the 373 differential I should put in a 456 instead. It cost me a couple $$ more but boy am I glad I listened to him. My 2008 Chevy never towed or ran more efficiently and on less gas then it does now. To those 2 haters that left a bad review was probably cuz they didn't listen to his recommendations that he told them. I know this man he's honest a great family man a good religious man and is very meticulous of his work and ethics and is always appreciative of you bringing your car or truck to him. Thank you Felipe for always being there for me and helping the general public in driving away in their vehicles feeling safe and secure and always lives up to his warranties and promises. God bless you Felipe. Eddie B.

    Speedway Tire and Service - Speedway Tire and Service shop

    Speedway Tire and Service

    (79 reviews)

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    My Tacoma which I've had since it was new 18 years ago started making some weird noise that I…read morecouldn't figure out what it was from. I took it in to a place AAA recommended in downtown LA and explain the issue. They told me I needed a new timing chain along with a whole bunch of other stuff and quotes me $4800 for it. This was preceded with a lot of scare tactics on what will happen if I don't have the work done, which came across as very used car salesman-ish. When I ran the quote through ChatGPT I was told they were charging me dealership pricing for an independent mechanic for that type of work in LA. So I brought the truck here to Speedway where I had Minor worked done before and had a good experience. They told me my bearings need to be replaced and did the work for lesson than a quarter of the price I was quoted at the other mechanic. Work was finished in a day and the truck has been running perfectly since then. Had I spent to 4800 at the place it wouldn't have even resolved the issue, which means I would've had to come out of the pocket even more after the initial work was done. Obviously a truck of this age is gonna have some problems and when they inevitably happen again I will be back here at Speedway to take care of them. Highly recommend this place for integrity, quality, efficiency and fair pricing.

    They did a very fine job in getting my vehicle service for a spark plug, transmission fluid and oil…read morechange service. Much cheaper charge compared to the dealership but the quality was absolutely perfect. I would highly recommend this shop.

    Juju Built Engineered Performance - autorepair - Updated September 2026

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