Refused the work because they are not a "Cobb tuning facility" and claimed they would need to invest money into equipment to tune my car when I did not want them to tune my car or have I ever asked them to tune the car and when questioned about that they elaborated and said they won't do the work unless I let them take care of tuning it as well which is in my opinion kinda lame but oh well read more

Five stars! I brought a 350Z race car to Jei for tuning. It had a newly rebuilt bored and stroked motor with a supercharger added. He asked all the right questions before I got there to understand what he was getting into. He identified that the previous tuning was very basic. Over the course of a few hours on the dyno, he found over 30 hp and 30 ft-lbs while adding in safety measures and keeping all the critical parameters well in spec. He also made a second map for a Laguna pipe muffler setup that I have. Lastly he gave me some great tips on what else I can do to further improve the motor. They were very efficient at getting the car on and off the dyno and their experience was obvious. It's not cheap, but this is definitely a case where you are paying for experience and expertise and the car ran great at the track the following week. Highly recommended. read more

Can't believe it's been over a decade of service for my vehicles. I had a S13.5, Datsun 240z & R32 Skyline GTR that has been in their care. They're extremely busy these days but they do a lot of high end and specialized aftermarket work. They are immersed in that side of the market and know their stuff! I'd say the hardest part is getting shop time... but once you're in, you're in. As far as a one-stop-shop goes, there isn't a comparable shop in a 50 (possibly 100) mile radius. Sure other shops can build out your stuff and they hire a guy to come tune you but BT does all of this in house. Jei is one of the best (and safe) tuners I know. No fluff, no BS "crackle toons". Just real, functional and safe tunes for your road race cars. These cars aren't set to be dyno queens, they're tuned to last. Aki is the hands-on person but he's extremely good at what he does. He does all of the fabbing, building, planning all in house. I don't want to speak on their behalf but I'd say, outside of machine shop work, they can do everything else. Engine assembly, all of the chassis related work, wiring, custom work etc. Grateful to know these group of guys and love the work that they do. Thank you! read more

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Brought my S2000 for TCT replacement, valve adjustment and transmission flush. Aki was extremely insightful, honest and a pleasure to work with while other shops tried to upsell me. Aki's hard work and passion for the S2000 platform really shows through. FYI Blacktrax even purchased the S2000 when it first debuted in 1999 - that's how many years of experience they have. They've earned a lifelong customer. Don't hesitate, give them a ring now. (510)573-6197 read more

Blacktrax Performance - Yours truly - Auto Repair Near Me - Fremont, California

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I wish I could give Aki at least 6 stars. He's a fantastic person. Knowledgeable, helpful and a great chap to deal with. I cannot recommend him or his operation highly enough. He's a really great guy who went out of his way to find a way to rapidly fix my car's issues at a very reasonable rate. This business is a gem! read more

I got to give this company a bad review. All the times that I've tried to reach out to them they never return calls or emails. If you look at their pictures... Tons of race cars. So my impression is unless you have them tune an expensive car like a Porsche or a BMW or you're on a race team... You are not getting a return call. Disappointing there's no more good South Bay tuners. If you happen to be looking for tune in the South Bay don't get your hopes up reaching out to this company. I'm already looking for places as far as Reno and Fresno. read more

Thanks Aki for taking care of our Honda S2000's. The engine rebuild on my 2005 is running strong a year later. We are excited to work with you on the yellow 2007 as well! read more

Blacktrax Performance - Aki is keeping these modern classic S2000's on the road - Auto Repair Near Me - Fremont, California

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I had my MSM dyno-tuned and I am happy to say i'm very satisfied with Jei and Aki's service. They are knowledgeable with experience to back it up. Legends. read more

Blacktrax Performance - Dyno-tuning the ruined MSM. - Auto Repair Near Me - Fremont, California

First most at Blacktrax they work with exceptional quality. This is definitely caused by Aki's deep knowledge and perfect work ethics. Secondly, Aki is very friendly and helpful and cares a lot about his customers, or so is the impression I got after I brought my S2000 to him for the first time. Above two factors are the reasons why I keep bringing my car to Blacktrax for anything requiring more than a 10 mil socket and a multimeter. read more

Aki and his team is very good at what they do. Aki rebuilt my s2000 head and was able to get a tuning session with Jei. I took the car out to the track and everything feels so much better now! read more

Blacktrax Performance - Auto Repair Near Me - Fremont, California

Jei and Aki are freakin awesome ! Came in for a dynotune on my k20 civic .From the initial email, to dyno day. BT has been nothing but help ! The tune/hp were impressive enough. But just knowing I was in great hands; priceless. 11/10 Would reccomend . Live in Socal? Car Transporter. I promise. You won't regret it THANK YOU Dr Jei ! read more

I'm lucky enough to manage a body shop in Fremont less than 5 miles away from Blacktrax. I had Aki and crew upgrade my Hondata to the newest S300.. I still had an older version from back in the day. Aki shipped off my ECU and had it back from Hondata very quick I scheduled the Dyno session and Aki was able to retune my B18C1 CRX to a respectable 163hp to the wheels Not bad for an all motor setup with cams and bolt ons Aki found a slight issue with my tach jumping and he was able to troubleshoot it to the ignitor (typical Honda problem) and replace the part at the same time Maybe time to go to a coil pack system! Thanks Aki and crew for going through my CRX getting it ready for some track day sessions !! Blacktrax has a great rep in the car scene for a reason. Go see them for any performance tuning or wrenching Vee read more

I had to get my car to stock for smog. this includes the costume tune from Blacktracks done some years ago. Now that I finally passed the smog, I wanted to reflash it back with the custom tune. That was no longer possible, I wasn't able to download it before going back to stock. I called Blacktracks, and indeed they found the invoice regarding the previous owner. However, they had lost the calibration file I need because they had some hard drive and server issues. I thought they were going to offer at least a discounted rate for a new tune, but nope, have to pay full price for the same shit. They should always keep a backup in case another HD issue arrise or wannacry virus takes over everyone's file. read more

All of the individuals at Blacktrax Performance are absolutely amazing. Not only are they expert craftsmen at what they do day in and day out but they are also extremely knowledgeable, customer service oriented and always go the extra mile to make things right. I can't even begin to go into the amount of work and curve balls I threw at these guys with me wanting to modify my '99 NB Miata. I have had them literally replace and/or modify every single component in the engine compartment, transmission, clutch, ECU, fuel delivery, brake system, custom seats, wheels, undercarriage, and shocks (and I'm sure I am forgetting a few other things) without even flinching and came through with flying colors each and every time. There is absolutely no other shop I would ever think of bringing my car to in the future except Blacktrax and I live all the way out in Morgan Hill. I made that mistake a few times over simple maintenance items with local shops which I thought were no brainers but I still regret those decisions and Blacktrax ended up having to fix those mistakes in the end anyway. Blacktrax Performance is hands down, without question, far and away, without a doubt, the best auto repair shop I have ever had the pleasure of working with. read more

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Brought in my s2000 for retainer replacement and other misc maintenance I wanted to take care of thats difficult to do myself. Blacktrax was extremely knowledgeable and professional. Scheduled an appointment and was called for updates and finished on time as planned. I usually work on my own cars but don't have the space anymore. Best service and confidence I've had in a shop thus far. read more

Called for a quote and voicemail was full. Voicemail says to email for quote. It's been 4 days, I emailed with my phone number and what I wanted done but still no callback or reply to email. read more

I went to a dyno and alignment day for S2000's back in August and the guys over Blacktrax were more than professional and courteous. I wasn't able to get my alignment done that day (due to my own hardware installation error), but Jei and the guys over there were able to schedule me for one a few days later despite the fact that they were still busy moving to the new shop. That far exceeded my expectations and I can't thank them enough! I'll be returning to them for a hondata tune on my S2000 soon, but in the meantime, I recommend that anyone go and check them out for your automotive (especially S2000) needs! read more

Blacktrax Performance is great! They are very knowledgeable and provide excellent service. They are an expert when it comes to Hondas. I've been to a few other places and I would rank Blacktrax ahead of the pack as their workmanship is top notch. It's been a while since I've last stopped by. They used to be my go to shop back when I had my Integra and I always went to them every time I had an upgrade or swap to my GSR. From the little things of getting a tune up and suspension upgrades to larger projects of getting an engine swap, Blacktrax has never let me down. After I got my car back it was running like a dream. Summary: Anyone in need of custom and high performance upgrades should most defiantly come check out Blacktrax. read more

Aki and blacktrax is an honest shop. They fix my s2000 anytime I have anything I need done. One time Aki noticed one of my rear shocks were blown and he put in a spare one he had from his car, free of charge. They never try to upsale me or brush off my questions. Highly recommend them. read more

This seems like a great place to go for an unorthadox engine swap. for an actual repair that requires troubleshooting i would go elsewhere. I was having a slight shimmy when braking at higher speeds. i have a brembo bbk on my car, and was recommended to blacktrax by a friend who has had them do engine swaps for him. i had already tried to diagnose the problem myself, and nothing appeared wrong. i drove over an hour from the north bay and brought it in asking them to do a runout check on the rotors and basically do whatever was needed to pinpoint the problem. it is a hub over rotor with a floating disc, not the most basic or simple setup. given their rep i had high hopes. after waiting at the abomination of a 'great' mall(full of empty stores and inedible food) about a mile for away for about 4.5 hours before i was called back. i was told that everything looked fine and that they couldn't pinpoint the problem, though they did notice it when driving. i asked if they did a runout check and was told no, that they couldn't do that there. uh, ok? so basically i got charged ~$300 for them to look at my brakes and tell me what i told them when i brought it in, that it all looks fine, but there is still a problem. they did clean the calipers well though! Also, i was originally referred to Jei, but the project was not handled by him. i got the feeling like they didn't want to get distracted from the really high dollar jobs for some minor brake problem diagnosis. i can't blame them for that, but the fact that that i spent a whole day and several hundred for not much of anything was a disappointment. they did tighten the brake lines properly, which the next shop i took it to did not. I would still consider coming here for a major project, but considering the drive and my experience i dont think i'll likely return here for any type of diagnosis or 'general' repair. I hope that i do have a project for them in the future so that i can give them a better review. read more

First , I called a lots shop to tune my ECU for my R32 GTR . I went to Z car garage for a tune and they didn't make my ECU tune works done , and keeping tell me I should change my ECU system (power FC) and said I had a bad fuel pump in the tank and charged me more than $500 to fix my fuel pump problem( even I provide a brand new fuel pump to them ) , because they said I have a "Bad" fuel pump (that one is new ,only two weeks old !! ) and then one time I try to switch that one with the old ones in my LSX 240sx to see if it still works ? ! And amazing thing happened ! It works great !!!!! After this I told myself I never go back to Zcar again and they always "OVER PRICE " !! Exact Motorsport owner John recommend me to ask Blacktrax (BT) to see did they tune Power FC , luckily Jei can tune for me , After I made appt to get the tune , and he told me a lots thing about my RB26 and I also knew he tune for racing teams as well , also he speak a little Chinese too :)!! After I got a few custom jobs from Aki ,and he is also friendly too ( even he looks very seriously when I first meet him hahaha ) His jobs to done on my cars is great works !!!! He also a Japanese :)) And after that I listen what jei recommend , changed my injectors to 1300cc and also changed my PFC to AEM V2 ........ Man ..... My GTR become different stage ! Car runs very smooth and drive on freeway AFR is always around 14.7 , and power very stable (450AWHP ) with single fuel pump and 91 gasoline ..... ,I never drive my car like this kind of feeling before .more important is before Jei tune it ,my car only get 13 miles/per a gal (freeway and street ) and is more than 17 ..... You get more power and also good gas milage !!!! I bet on freeway Cruise it can get around 19-20 !! Today ,just finish my LSX S13 in here , after the tune it has 20 more WHP and 23 more torque . And before this tune it only get almost 20 miles/ gal on the 100%freeway driving , but I think now it can get 25-28 like Jei told me so !!!!and it only took almost two hours done . I think a lots ppl in the bay area are looking for a good tuner and a good person who did a great custom job . They didn't mind to pay the right cost .(I recommend BT or Exact Motorsport ). They also looking for honest relationship with the shop workers . But think about it , if u planing to do it ,but you don't want spend the "right" cost at "right" place to finish your project ,then usually you will spent more and more money to fix this to fix that at different shops ! Also you won't know who mess up your baby car in the end . Also please ask James or Aki or Jei , they are really honest and knowledgeable , before you do anything with them ,they will help u to plan and also make it right and also save your money and times ! You guys rocks !!! read more

Blacktrax Performance - My LSX 240 ECU tuning done !! - Auto Repair Near Me - Fremont, California

I rent space in a shop with a lift, and build crappy race cars with my friends. I do most work on my cars myself, so I tend to be picky with shops that I pick. Compared to the average car enthusiast, I can do more than hold my own in terms of wrenching. Compared to Blacktrax, well, that's like comparing my 12th grade intramural basketball team to the 1996 Bulls. James is great with communication and knows his stuff. Aki builds great motors. I've spent thousands here and have no regrets. read more

I recently had a header installed on my 2009 Civic Si. I thought I would be finished since I already had CAI and Exhaust. I found out that to truly maximize the potential of my bolt ons, I would need a Flashpro and Dyno tune. Jei and the rest of the guys gave me all of the above at an amazing price! James ordered the Flashpro unit and had me on schedule ASAP. When I got there was on the dyno within miniutes. Jei did an incredible job with the reflash, tune, and gave me the baseline so I knew all the numbers going in and out. After the tune I really couldn't believe it was the same car. Highly recommended. Thanks Jei and Blacktrax! read more

I took my Prelude to Nat & Jei last year to get new hub bearings and lug studs pressed in. Not only was i more than happy with the service, Jei also got me a deal on replacing my front axles since all my CV boots were torn. I was on a time crunch due to an upcoming meet and my car was done with plenty of time to spare and all the work done perfectly. They even pointed out a few parts and leaks around my engine bay that needed attention, things that I hadn't even noticed in the year i had been tinkering with the car. If you have a Honda Prelude, this is the performance shop for you. read more

I will give this shop 6 stars if possible. Fast service. Appointment only so I don't sit around waiting for someone to come to me. Over all a very good experience. Job: Transmission rebuild. Clutch Install. Flywheel service. KPro Tuning. Fender roll. read more

Got my Ride all done up and tuned there best service ever. KNows what they are doing for sure. Love the Appt style because you kno they are working on your car. I dont know what happen to Edison C. but this place is def not a 1 star. read more

Went in for a PPI for my Honda S2000, perfect service, knowledgeable staff, reasonable price.

Aki knows his shiiii...got my s2k ap1 clutch replacement over here. He covered all the basis and very detailed on what came in and out of the car. He also provided a list of things that needs attention in the future. I definitely will bring my S back for other services. Bringing my s2k here was an eye opener to realize how much of a special car this is. Thank you guys. read more

Top-notch service. I met another one of their customers with a supercharged S2000 at the shop to purchase some parts that were being removed off a car. The parts were previously installed by Blacktrax and the installation was pristine (and great for resale of parts and car, obviously). The parts I purchased were cleaned and neatly organized in meticulous fashion (which in particular is why I'm writing this review). Some of the components I purchased were fabricated/modified by Blacktrax which I found very impressive in build quality. Both myself and the other customer had funny schedules and Blacktrax was able to accommodate. Although my appreciation is only immediately shown via a handshake and a Yelp review, when there is something that I can't do myself (or don't trust myself to do) on my cars, I will be taking my cars to Blacktrax, even if they are 50 miles away from my house. read more

This is a very good shop that you can trust your car to when it comes to tuning and modifications. Very professional, and work is done clean and right. I used to bring my car there before a couple of years back. They did light internal work on a B16 I had in my DB1. They did a great job, no problems, no complaints. Jei and Nat are awesome to work with, making sure that you are happy with the work done on your car. What's cool about their location is that they are near the Great Mall. While waiting for my car being worked on, I would go watch a movie or walk around the mall to kill some time. I'm planning on visiting them again when I can afford it. =) read more

Outstanding! From the start Jei answered all of my questions I had asked about my supercharging kit (Honda civic si). He kept in complete contact from the start all the way until the day of my tune. He even gave me a base map so when I drove it to the tune (free of charge) A+. After many back and forward emails. (all quick turn around a day or less) I came in to tune day. I had to get some O-rings replaced for my injectors and they put them on. I talked with Jei for a little bit and it was easy to see he knew is stuff! He asked questions about the car and talked about how tuning works. I then let him do his thing. The tune went well except for a minor issue with my OBD sensor but he basically looked at it for free and suggested I get a new one (when he could have charged me $110 to look at it). Overall: awesome experience I highly recommend using this shop. I will definitely be back and suggest my friends to use this shop. He could have easily charged me 2hr tune / 2hr repair (because of the actual time he spent on the car) But instead he combined the issues as one and charged me 1hr tune and 1hr for repair coming out to $295!!!! That is amazing! read more

First time here and getting my baby worked on. The shop wasn't hard to find at all and when you come in, you see a small array of parts they sell. Don't let that fool you though because of all the things I've heard from friends about this shop, they do an amazing job. I made my appointment to get my aftermarket steering wheel installed on my s2000. As the shop was completely booked, I made an appointment a week and a half before I could get it installed. So I came in today for my 10 AM appointment and James set me up completely and quickly. They brought my car in and started working on getting the installation done. As I have bought the complete kit, James came to talk to me that there was an extra step missing that was never included with the kit I had bought. He explained to me that I had a dual stage air bag release but the company I bought my kit off of only knew of a single stage and provided resistors for that. James went through with me about what is happening and that he is going to search up more information on how to fix this as any s2000 under the 2006 model, needed only a pair of the provided resistors and the 2006 and newer ones needed more resistors as it was a dual stage air bag. James charged me only for half an hour of work because they needed to find more information on if any one else with my year or newer found a way to get around air bag kit. When they find out how to solve the problem, as he also contacted the company who made my kit too, he will call me in and completely finish off the steering wheel resistor kit. James is very honest and thorough with explaining what is happening and I really appreciate that. He walked me out of the shop and showed me to my car, I was amazed at how the steering wheel looked and that the install was done correctly and cleanly. I will definitely come back for any more modifications I need to my car. Honesty, great explanation and in and out fairly quickly. This place deserves more than 5 stars as I am completely satisfied even though there is one missing factor that needed to be solved that the company I bought my kit from didn't even know about. read more

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Paid for complete tune $1300 tune. Ran like shit, asked them what wrong. They said I have to pay extra to street tune. Complete tune is not so complete. Hardwired my ECU to the battery. Cut cornered on HG job caused leak. Car got 0 compression after 6 months of NOT driving since the day I got the car back from them. Spent almost 7 grands to get EVERYTHING fixed again at another shop. read more

If your looking to get your ride boosted, I suggest you check around places. This place is pricey and rushes things...all they want is get your car out the door and so they can get paid. But after you drive out there are a lot things they over looked and you end up spending thousands to try to get your car fixed....two thumbs down! P.S. I agree with Drew... read more

I just stopped by to get new brakes from Blacktrax. Aki helped me pick out new pads and helped me figure out what was needed to be done to keep the car running smoothly and what was within my budget. He finished the job in time as promised. He also checked all parts of the car to make sure that nothing else was making trouble. When I got there to pick up, he showed me what he found out and his recommendation on what to do. (He told me to just observe in case it becomes a problem; no push to fix it) As he was explain, what I felt was that this man has more love and passion for MY car than I do. For just a moment I actually thought he was showing me HIS car. Thank you to Blacktrax for moving closer to east bay, thank you for a great job done on my car. read more

Can't say anything about their work but I called twice for a quote and both times they said they would get back to me and did not. Customer service sucks. read more

Pretty hard to find a well trusted shop in the bay area. Found them on the Honda s2ki forums. Got a discount 10% discount off labor :). Got many quotes from different shops way over price for the labor so for people saying its expensive? Not too bad, very nice and friendly people here. Great shop. The work I got done. Replaced Ap1 retainers and keepers. With Ap2 retainers and keepers. Got that peace of mind so I can rev to 9! read more

Professional and very good knowledge of my Honda s2000. Aki provides you with good information, in the office Natalie takes care of business very well read more

Best place to go hands down. I saw some awesome cars being worked on here. They do custom welding/fabrication. They can do motor builds and install pretty much anything. I got my car dyno tested. $80 for 3 pulls. I would recommend making an appointment for your car as they are busy. read more

As far as swaps/custom work goes they are as good as it gets. Their work done on my Honda CRX was 4 years ago this November, and it's still running with more than 80k on the new motor. read more