These are two amazing brothers who own this company. They been working on my car for years, never gouging on prices, and always honest about recommendations.. I'm always 100% satisfied with their work. read more

Brought my mini van here because my parents are years long customers and they trust the guys here. They are very knowledgeable. Highly recommend. read more

Great Techs and honest, can't get any better than that!!! Just had three vehicles serviced with them and I can't be any happier with the outcome. To anyone reading this post I highly recommend them, give them a chance!!! You won't be sorry!!!! IMO!!! read more

George & Louie are great! I was having trouble with my A/C condenser and needed a replacement, and a recharge to my A/C. They gave me an unbelievable deal (way better than what I was getting quoted elsewhere) and were able to get the job done quickly and efficiently. Not only that but the spot they run is really chill & laid back. The vibe of the shop makes me want to go and just kick it with the guys. Another great thing about this shop is the hours they keep. When most shops are closing (end of the 9-5 shift), these guys are just getting started. It was a relief to not only get a great deal, but to also be able to get the work done when I got off work! Thanks guys! read more

Update on 9/20. Earlier this month my car started shaking hard while driving/parked and it's hard to accelerate. Came to George and they tightened the spark plugs, engine light was gone and it drove normally. However, after few days, same thing happened so he did diagnostic and it seems like the misfire was caused by 14 years old stock fuel injectors. It was a Friday night but I had a car meet the next day so I wanted it to be fixed asap. George kindly found someone who has the injectors and Louie fixed the car in an hour. 3 weeks later, my car is running fine thanks to them. If you have any car issues, don't bother finding anyone else around this area, just give them a call, they are really nice and charge you reasonable price. read more

had a amazing experience here. very affordable and they are nice people . i don't really like performance shops cause some like"rockstar garage " are a-holes. juju built all the way read more

I was having trouble with my power steering, so I found Juju Built On Yelp with great reviews and decided to try place out. I couldn't be happier with that decision great customer service, reasonable prices, clean area and my truck was ready fast. I am definitely coming back here again. Shoutout to George and the team great work. read more

I needed my car to get a final drive, lsd, and oil cooler done. The major problem was the diff I needed a shop to know what they were doing. I had my car done prior sema week and majority of the shops I contacted didn't know how to do it, didn't know what they were doing, didn't want to work on it, was going to send out diff to another shop, or their prices were outrageous. I called him up and I told him when I needed by due to my coilover needing to be rebuilt and he gave me a timeline when is should be done. I was able to get my car back and bring it to eibach to rebuild my Coilovers and I was able to make it to my track event. My car work flawlessly and didn't have any issue when I went. I do plan to come back again when I need something more then an oil change. read more

Juju Built Engineered Performance - Install greddy diff with final drive and lsd with no issue - Auto Repair Near Me - Upland, California

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Should out to George and lewie they are very help full and will look out for you . If you ever have a problem with diagnostics this is the place to go they can figure it out I. There sleep read more

Great business, I trust them with my car, they're very passionate about their job and continuously try to figure out the problem with the car and fix it. They were honest with me about my car and the issues within. read more

The TLDR: This shop is super awesome! They really take great care of their customers and are extremely trustworthy, fair, and reliable. First came across Juju Built when my friend and I were trying to install an exhaust on his car. One of his bolts were stripped and couldn't get it off. We had called all around the area and it being Friday 6pm, NO ONE wanted to help. We called Juju, and George was more than happy to help us out. He literally took 2 minutes and my friend and I were off to finish our install.... Since then (the past 2 months), I have had George and Louie take care of all of the maintenance and installs on my '13 frs. The past couple months they have installed my CTS-V front and rear Brembo brakes, new slotted rotors, brake lines, headers, turbo kit. They are super chill, really easy to talk to and work with. If you have any install, George will list out everything that needs to be done and tell you an estimate so you'll know exactly how long it'll take and how much it'll cost. They will handle any make and model car. read more

Been coming here for almost a year. Never been to an auto repair place that tells it like it is and never lied! They get it right the first time! i think the owners are George and Louie. They serviced my car (headlights and oil change) for almost a year now. They're cool people all around. very professional and they LOVE what they do. Located in Upland CA off the 10. THANKS GEORGE AND LOUIE FOR YOUR SERVICES!! :) read more

Juju Built Engineered Performance - Auto Repair Near Me - Upland, California

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Had electrical issues with my car. They took me in right away. Staff was extremely helpful, welcoming and extremely knowledgeable. Would definitely recommend for any car issues. read more

George and Louis are the only mechanics I trust. They fixed what other mechanics/muffler shops didn't want to fix on my car, and I definitely appreciate it. Especially since they went out of their way to get it done quickly. They can literally fix anything, and everything. They swapped my trans w/ a new clutch and flywheel, rotors and brakes (also bled the brakes and clutch), fixed an exhaust issue, replaced the oil pan and valve cover gasket, oil change, swapped an Axle and slave cylinder for new ones, and a lot more. They've also welded my front end radiator support a while ago when no one else wanted to. They care for their customers, and explain everything in detail so that you know exactly what's wrong and give you their recommendation of the best possible solution for your needs. I can't thank them enough for everything. read more

I brought in my 2017 wrx w/ 86k on the clock for walnut blasting, spark plug change, and brake pad change. George was awesome and did great work. He found other issues that a previous shop didn't do right that I had no idea about. George is highly knowledgeable and would highly recommend. He definitely took care of my car. read more

I went to over 7 shops for sidemarkers install on my 03 Civic and they couldn't install them. Once I went to Juju built they said they could handle the task. George took me in asap and got them done the same day. Best service and very friendly definitely recommend coming here. read more

Every once in a while, you meet someone with a genuine passion for their craft to the extent that you trust them implicitly. I could go on and on, but to keep it short, these guys are simply the best. No nonsense. Get your car in before they have more business than they can handle. read more

Can vouch for this shop after spending a lot of time searching for someone to install a part on my focus st George was able to do it with ease Didn't catch the other 2 guys names but they made it a great experience overall. will be getting more work done from these guys in the future read more

Juju Built Engineered Performance - Garage - Auto Repair Near Me - Upland, California

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This is finally a trustworthy mechanic! I came in to do my brakes this time...I will definitely be back for all my car needs!

Came here to get my clutch replaced. George helped me decide on the best setup in terms of performance and price. He quoted me way lower than other shops in the area. I was even able to get other parts with the amount I saved. Kept me updated on the progress of my car through text the whole time. Needless to say, it's been almost a year now, and everything is working great. George and his Bro are the best, both very knowledgeable and nice guys. Excellent work and customer service. read more

Had heard of this shop for a long time decided to check them out for some help with my s2000. By far best shop I've been to down to earth guys with honest pricing and a strong work ethic I will definitely be back and will be sending all my friends and family their way. read more

Great service by Georgie and Louie! They squeezed me in and got me in and out in 30 minuets.

George is awesome!! He saved me money without even working on my car. He spotted the issue, explained what happened, how he would fix it and how much he would charge. Armed with Professional knowledge, I took my car back to have the original mechanic repair their mistake. For now on, all my vehicles will be going to JuJuBuilt Engineered Performance for repairs!! read more

The only place I could find open to help me out with a car emergency after 9 pm! George was extremely helpful, quickly diagnosed the problem, and had me back on the road. I felt like I got really trustworthy advice and incredible service, wouldnt go anywhere else read more

Been coming here since vietnam .. cheap prices..no sneaky business and open late .Def recommend this place

George was the only one out of 4 shops to call me back and take on my request to install all my mods I had for my 335i to be full bolt ons. They took me in and finished installing my mods in the same day. George and Louie are seriously the best! If you need anything done to your car I highly recommend coming to their shop before you go to any other shop. You will not regret it. read more

This company is beyond great, parts and maintenance done the same day, with an honest approach and satisfaction guaranteed. Louie and George actually give a damn about their customers. They have a great attitude and the best experience. My car had a one cylinder misfire. Before Louie even used the scanner to read my car he heard what cylinder and what the cause of the check engine light was simply by hearing my engine turned on. Within 10 seconds of being in the shop they knew the problem already. Started off with a spark plug change Nd gaskets as well I also had two broken coils but, the pricing isn't bad at all. I knew ahead of time what the labour should cost and their cost was way lower than expected. Honestly felt like family there and I will be returning to ju ju built for the rest of my cars. I even asked for a decal to promote on my car, you don't find a shop that gives a damn more about their passions than Ju Ju Built Engineered Performance. Very glad, I went there, and figured out that these mechanics are the best in the Inland Empire and probably in all So-Cal. I took my Lincoln MKZ 2010 AWD V6-3.5L read more

Called George a week in advance and setup a time to do my exhaust and heads. I ended up getting the parts in sooner, called George and he was able to slot me in the same day. my 14 brz has never had any work done and George and his brother took care of my car like it was their own. these guys are amazing, yes the job was easy but the time and price was well worth them doing it then myself. 1000% recomendation. Not only did they take care of what I came in for but they even did a full visual inspection of my motor and found a few minor issues. The guys took care of it and never charged me. This place is my new go to shop. Both guys are upfront no bs. This is the one shop that I dont feel im getting bent over, the guys work hard at a fair (pretty much a steal) prices. Next few items they are going to install -flexfuel, ecutek and a kraftworks supercharger. I cant wait! read more

George and Louie are very helpful. I went in to do an oil change and I think his name is Michael who helped me and he was very helpful along with Louie right by his side. Michael knew exactly what he was doing and he got my oil change done within minutes ! All three of them have wonderful customer service and I will definitely be going back for more services. They get the job DONE ! read more

I've been coming here for the past 4 years with all my cars I've owned and they take excellent care of them! GEORGE & LOUIE are the best mechanics you can find, they're very dedicated and have a passion for cars and will make sure your car is in great shape! They are honest and won't overcharge you like most mechanics! They are the most trustworthy guys I know in this business..also, they will always make time out of their day to get your car fixed as fast as possible..trust me, don't go anywhere else but here, you won't regret it..best service around! read more

made the mistake of trying to lowering my 2020 Civic Hatchback myself. ended up messing up my front left axle so i brought it to JuJuBuilt (George). George helped me out and did an amazing job getting me my left axle and installing it for a fair price!! i would 100% recommend them to you if you ever need any maintenance done or installations done to your car. 10/10 communication as well which i appreciated! read more

Clutch replacement, 06' Acura RSX Type S. I decided to wait a few months to post a review because I figured you cannot tell how good the work came out until breaking in your clutch for several months. George is great, quick to reply and keeps you updated. I am glad he recommended the stage next stage for my car, closer to stock. I will probably consider a stage 2 or 3 next time I go to his shop. I have a few more things I want to do and will definitely go back to George to get it all done when I am ready. A very nice shop, these guys take pride in their work. The location was a little hard to find with GPS so make sure you have your directions written down before getting there. read more

Best experience ever with this place since beginning to have my worked on. I was looking for a reliable garage as the last few I've went to have been pretty unreliable. I showed up randomly one day to see if I could just set up an appointment to get some suspension work done on my car, literally NO-ONE around had anything open and also wanted to charge and arm and a leg. George asked if I had the parts on me and said lets do it right now! Took me right on the spot, charged way less and did amazing work. This will be the only place I come to to get work done from now on! Nice, honest and knowledgeable guys that aren't gonna BS you. Straight up get your work done here! read more

This shop seriously treats their customers cars as if it was their own. Super laid back atmosphere, no pretentious mechanics who look down on you. Came in around 6-7pm to get coilovers and some rpf1's installed on my car. It took them a while to get started on my car cause they were busy fixing a LSD on a truck. Normally im a very impatient person and dont like to wait around killing time but i didnt care this time because of the care and attention George, Louie, and their team gave to this customers car. It was one trouble after another with the customers car who was ahead of me, but they tackled every issue like true bosses and eventually got the thing running again. It was refreshing to see mechanics who loved what they do and showed their passion through their work ethics. They take the time to make sure that everything they do is legit and no corners are cut. When it came time to work on my car, they gave the same amount of attention and detail to their work as they did the previous customer before me. I dont know how the hell they maintain a strong working head like that, but hey i'm not complaining! Definitely will be back for future car needs. read more

I wouldn't go anywhere else! They take care of my civic all the time from small cosmetic stuff to swapping my engine and converting it to 5spd! Very knowledgable and they don't even mind if you go just to hang out read more

Probably one of the best shops around. The two owners are extremely knowledgeable and friendly. Highly recommend this shop for any builds, repairs, and upgrades! read more

The only mechanic I trust. These guys have helped my family with our car issues for over 2-3 years since I moved here to California. They do the job, get the car fixed, and charge a fair price based on the car you have and offer the best possible solution. Example: I needed a air compressor to be changed and I went around looking for other prices and other mechanics charged me 300-500. Here, after honestly telling me what labor was gonna be needed and detail for detail description on the issue, George only charged me 225. Shoot after helping me out with that I asked him to help me out with like 2-4 other things on the same day. Totaled to 400 BUT I got a compressor switched, a/c charged, and a few other items on my car fixed. I even returned a part he told me I didn't need and he was right. Wasn't necessary at all when the other mechanics were saying it did. My cars work perfectly. Thanks to George and Louie. highly recommend these guys. They have a passion for what they do and care for and offer the best for their customers. If you don't understand something he will tell you detail for detail for you to be able to understand exactly what's wrong with your car. So go to them read more

Five stars are not enough! I could go on and on about what conscientious, efficient, and diligent mechanics George and his brother are, but what sets them apart is their integrity! They are the most honest and forthright mechanics I've ever met; it is a relief to finally have a trustworthy, kind mechanic who provides unmatched service. My son and I had some difficulties (to put it mildly) with some other mechanics at two other shops who worked on the clutch on his 350z. George totally went out of his way to help us and explain in detail exactly what went wrong. I was impressed beyond words with his knowledge but more importantly his concern for us as customers. My only regret is not finding him and his brother sooner. I can see now why my son so respects these two mechanics. I'm a teacher and if they were my students, I'd give them my entire drawerful of stars...like I said, five stars just aren't enough. read more