I brought my 370Z here to have it tuned, after I had put an intake and cat back exhaust. Edgar and Seb were great and the session went very well. Seb did a fine job in optimizing my car's tuning, with the car performing great. The price was very resonable and I feel lucky to have had the services of an expert like Seb working on my car. They are a great bunch of people and I am looking forward to visiting them again for more work. read more

Does all in there power to help customers and they take care in customer service! Thx again for the great help !

Recently bought a 2024 Nissan Z Performance trim and needed AMS cold air intakes installed. Found them on a google search and emailed them about setting up an install appointment. Needless to say they did a great job and got it done in about 2 hours. plenty of time for me to make it to work that day. Seb and the team were very professional and answered a few questions I had after the install. I'll be working on upgrading the suspension soon and plan on going back to have the work done there. Great shop. read more

Specialty Z - Auto Parts & Supplies Near Me - Simi Valley, California

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The whole experience of getting my car tuned was great! From Seb and team answering all of my questions before the appointment was set, all the way to showing me the details of the app, its features and how to use it, and map switching. There were some issues that I experienced afterward that were not related to the tune, but Seb was able to use the data log to point out potential issues (some of which I was experiencing prior which I incorrectly diagnosed as lag). I was appreciative of the explanation of the dyno at the completion of the tune, and the thought process behind the numbers. I wasn't looking to be a dyno king, and I'm happy with a more conservative approach for my daily driver. All-in-all, I'm happy with the result thus far and the post-tune support. read more

Specialty Z - On the dyno - Auto Parts & Supplies Near Me - Simi Valley, California

I recently had work done at Specialty Z and they went above and beyond my expectations! Sebastian is an extremely knowledgeable tuner and took the time to thoroughly explain all the work when I picked up my car. Communication was excellent throughout the process, and I got my car back in the exact same condition as when I dropped it off. Professional, reliable, and highly recommended! read more

Came in for a clutch re-learn on my 09 GTR. I have an 09 with a newer DBA transmission that was installed by another shop a few years back. After the install, the car just never felt right out of first gear and the previous shop was not the easiest to deal with after he had collected my money. I called up Specialty Z and spoke with Leslie. She is super friendly and knowledgeable and set me up with an appointment. Sebastian only had to drive my car a few feet and he knew exactly what was needed to get my car shifting smoothly. I wish I had found this shop years ago, as I would have rather gone with a Shep Transmission from Specialty Z. The shop is big, has plenty of bays and space, and is very clean. The whole crew was friendly and helpful. I look forward to having Sebastian and his team service and modify my GTR in the future. My car now shifts like butter! read more

I think its reputation speaks for itself. Seb and his team have created a place for car enthusiasts to feel confident they are getting the best service in the industry. Their customer service, knowledge, availability, and willingness to help its community is unmatched. I have since moved from the area but would recommend anyone in SoCal to Seb. I appreciate all the work he's done on my Z over the years, I have never had an issue with this company. It's been a pleasure. read more

Seb and his team are the best automotive shop I've used in my long history of vehicle ownership. I had them do some exhaust work on my car and they were extremely professional and careful with my car. I couldn't recommend them enough to any Nissan enthusiasts in the SoCal area. Definitely give them a call for any of your aftermarket needs. read more

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I've been a customer of specialty Z since 2002. They have since moved to locations to a very nice facility right in my hometown. Seb is a master of the Z32 and is known to be the top mechanic for these cars in the whole country. They also work on other Nissans/Infinity vehicles. I put my full trust into them and they always come through. They even have a dyno setup now. They are so manufacturer dozens of their own parts which are nothing but high quality at a reasonable price. If I could give them more than five stars I would! Thank you!! read more

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Have had a great experience dealing with Seb over the years. He helped me talk through options for my car and was patient in the process. The first time I went for a tune on my track car, the system would not recognize my ECU, so I unfortuantely had to drive back up another time once that was resolved, but Seb made it worth my time. He included the full EcuTek kit the first time I went up, so that he could do some remote tuning for me in the meantime. Then I went back up for a proper dyno tune. This was all done around 2020 and since then, he has provided tons of follow up support to me and answered all my questions clearly and concisely. Highly recommend this shop to anyone and will be back with my next car (if they support it!). Thanks again, Seb. read more

SPECIALTY SCUMBAGS. The "best place" for Nissan/Infiniti's turned out to be the WORST. Saved up for 5 years to get my baby on the road and these guys treated me and my car like trash. No sympathy or consideration whatsoever and even lied about extracting 25 gallons of gas from my tank which is a blatant lie considering Gs only have a 20 gallon tank.. They snapped my battery's positive terminal cover off, insisted I swap battery cable even though nothing was wrong, (I know because I have swapped battery multiple times with no issues) Charged extra $500 for rust on bolts, and even price gouged me on multiple items by 70% at least.. Simple example, they made me pay $150 for USED intake tubes which are $25 BRAND NEW on Amazon. Paid damn near $4000 to not even get a full diagnostic, car didn't even have coolant and they let me drive off like that.. And after everything the car was unable to run after just two weeks of leaving the shop. Upon calling I was told to email and of course I never received a response. ABSOLUTE HORRIBLE EXPERIENCE, receptionist was nice but besides that 0 stars. I worked so hard at minimum wage and starved for years to scrape together the cash and they just violated me completely. AVOID AT ALL COSTS! UNLESS YOU WANT TO BE ROBBED. read more

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I've brought my GT-R to Specialty Z a few times now for maintenance and parts installs, and they've been great every time. The team really knows these cars and always treats mine with care. They're straightforward, easy to work with, and the quality of work is always spot on. Highly recommend! read more

What can I say . I've been taking all my cars to Seb for over 10 years . Extremely professional , very fair pricing and honest . They go above and beyond to make sure your vehicle is done right . Happy to see them move into a much bigger more accommodating shop . read more

Specialty Z - Completely restore and better than new . - Auto Parts & Supplies Near Me - Simi Valley, California

Came back for a dyno tune with Sebastian. The previous time I was here I had a remote tune from a reputable tuner, but still felt like it was safe. I literally asked Sebastian to max out the wastegate (28psi) and tune for it. He was able to add an additional 60 ft/lbs. of torque, and horsepower on an ECUMASTER emu classic. Although I do the majority of my own work, I can tell you in the Nissan/Infiniti world his work is 2nd to none. Booked ahead, they are busy! Thanks again Sebastian read more

I waited 3 months to get my Q50 red sport tuned by Seb and it was well worth the wait!! It was my first time ever tuning a car let alone dealing with a turbo car. He answered all my questions and was great about explaining everything that came with the tune and what was on the dyno sheet. I'm happy with the power right now but I can't wait to go back and get more work done! Thanks Seb! read more

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Nissan and Infiniti specialists. Take advantage of their JDM knowledge and project experience, it's rare to find a shop like this. I brought an all stock car and they performed the most detailed inspection I've ever seen and gave me all important items in writing. Their approach is OEM or better, don't expect them to install your Chinese eBay parts. read more

Good price and great service! Very knowledgeable people that get it done right. Thank you LJ for awesome work and such fast service for my GTR Nismo. Thank you Sebastian for your expert advice read more

Specialty Z - DCT fluid change - Auto Parts & Supplies Near Me - Simi Valley, California

I've been doing business with Seb and the guys at Specialty-Z for several years. They have never let me down. Definitely the only shop I trust to do quality work here in SoCal if you need work done on anything Nissan-Infiniti. read more

Specialty Z - Auto Parts & Supplies Near Me - Simi Valley, California

One of the best shop I have ever been,I go a lot of shows for my car but specialty Z was different,they explained me what I need to do to run my car better Lone story short Specialty Z is highly recommended read more

These guys are legit pros. They did a fantastic job on my car and very fair pricing compared to the others. Looking to get more work done in the near future. Thank you read more

Great work really knows what their doing Sebastian is the greatest at what he does Thanks for your help appreciate it

If you're thinking about getting some work done definitely come check out Specialty Z. Brought my Q60rs and Seb definitely delivered. Extremely knowledgeable guy. read more

Specialty Z - Auto Parts & Supplies Near Me - Simi Valley, California

I've never met a mechanic as smart as Seb. He knows Nissan and the parts he works with. His recommendations are spot on. To get some modest performance improvements in my '07 G35S, he recommended intakes, cat-back exhaust, and a tune. The result was just what I wanted. The whole team is friendly and they take great care of you. read more

I was refered to Seb for a Dyno Tune. Wow, does this improve the power and running of a car. My car was fast, but just wasn't putting it out like I had hoped. No expensive part to ruin my warranty. Seb hooked my car to the dyno and computers and went to work. I had so much more power I kept spinning my wheels on the way off his lot. He also gave me three other programs; One for over 95 degrees so I won't hurt the engine in the heat. One so nobody can start the car, another so a valet can't go over 35 M/h. And one to go fast and fun. I will use Seb to do any modifications to my car I need and of course for regular maintenance. This is a great guy/mechanic for your car and nice to deal with. He is the best. read more

Went here to get my Q60 tuned with ecutek.GREAT GREAT service and any questions I had they answered. Sebastian is great dude is full of knowledge sending him tons of cars and business hopefully they expand to other platforms and cars cause man I would send everyone here. 10/10 service worth your buck. Instagram - Jayuppp_ My build page in the works big goals read more

Specialty Z - Ecutek Q60 - Auto Parts & Supplies Near Me - Simi Valley, California

I came here to get my Q50 tuned coming from 2 hours away, this is my first tuning experience and Im glad to say it was with specialty z seb gave me great numbers 430whp on 91 octane ! Very knoledgable when it comes to these cars and continues to help me with any questions I have regarding data logs. The building is also very nice and easy to find I love that its empty and has alot of space to park. read more

Specialty Z - Dyno sheet - Auto Parts & Supplies Near Me - Simi Valley, California

Specialty Z is the BEST Z shop in the United States! There's a reason people ship their cars long distances - even across the United States - to this shop. Greg Dupree and Sebastian KNOW these cars. Their work is always top quality, and when you take your car here - you can expect the best. I've been taking my Z here since 1999, and have always been more than satisfied with the results. They offer all sorts of performance modifications, and even have products (like the killer exhaust system they installed) of their own design. Greg and Seb are the REAL DEAL! read more

Specialty Z - Auto Parts & Supplies Near Me - Simi Valley, California

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What a bunch of knowledgable guys-- These guys tuned my car-- did compression test-- and everything was said and done in under 3 hours.. Great service, friendly attitude, I was waiting to take the tuners gtr for a spin.. But all good.. Thank you again guys 350z Twin Turbo read more

Specialty Z - Auto Parts & Supplies Near Me - Simi Valley, California

The crew at Specialty is by far the most reliable and helpful for any of your Nissan/Infiniti needs. I travel the distance knowing I'm in good hands and recommend a visit for anyone interested in any performance goals for you car ! read more

Best place to tune your car if you own a Z or a G. They tuned my 300zx to its full potential and I'm very happy with the tune! Plus to get it retuned you only have to pay 50$. I highly recommend this place best tune place in sfv! read more

Have had the pleasure of two visits to this shop. First visit was for a tune. To say I was satisfied doesn't seem to give enough credit to the difference in how the vehicle performed. I brought in a misbehaving brute and left with a refined beast. If you've had one, then you know. Today I dropped off same vehicle for some upgrades and to have issues leftover from previous builders ironed out. And while the necessary work has not yet begun, I left with something I value just as much. I left with the confidence knowing I brought my vehicle to the right place. You guys just impress! read more

They definitely live up to the hype. Seb tuned my car exactly how I wanted it even some extras and showed me the ins and outs of how to use the tune maps. The whole team is friendly knowledgeable and masters at their craft. read more

I've known Specialty Z for over 20 years. Greg Dupree and Sebastian Chacoff are not only Nissan Z gurus, but are gentlemen and professionals of their craft. The care and passion that goes into their work is second to none. I call them Z ninjas because they're on top of their game when it comes to Nissan Z cars. Whether you have a 300zx or GTR, trust nobody else to touch your vehicle. As Singer is to Porsche, Specialty Z is to Nissan. Everything they do is perfect. Everything they touch is perfect. Everything about their craft is important to them and it's evident by their work. Visit their shop and you're welcomed by the owners and their staff. All of the guys here have Nissan sports cars in their blood. People ship their cars here for a reason. I drive over an hour here for a reason. They have the knowledge and experience to handle it all. From routine maintenance, to bolt ons to make your car run better than from factory, to full race and track builds, everything that comes out of this shop is pure perfection. My car is a mint z32 twin turbo. I've cared for this vehicle more than anything else in my garage. It's a labor of love. And nobody touches my car but specialty z. Call the shop, make an appointment, and just trust these guys. More than reasonable rates for the expert service and work that will be done to your car. Dyno tuning is available on site as well by two guys that make our motors sing and boost like there's no tomorrow. Hats off to Specialty Z for doing what they do best. read more

Seb is an awesome tuner and helped me every step of the way. He is very knowledgeable and truly cares about his work. His team are a friendly bunch and knew what they were doing too. Definitely coming back for all my 370z needs. read more

Tune from Sebastian was great really opened up my car and feels as it should now!! I ran into a problem with my car while I was there, Seb and LJ really went to great lengths to solve the problem. read more

This being my first Yelp review, makes this place special. *pun intended* I want to start this off by thanking Sebastian, Greg, and the staff at SZ. They're warm hospitality, welcomeness, knowledge, and services will keep me coming back for a lifetime. I took my 08 G35 to Specialty Z to get an Osiris UpRev dyno tune by Sebastian, and I am more than pleased by the results. He made my car come back to life. Plus, a side of my car i had not experience before and had the pleasure of enjoying on the way back to work. They really know their Nissians and beyond my own expectations. I can see why people ship their cars out-of-state to SZ. They are the best and I saw it first hand. Thanks again for your services, friendliness, and loads of information. If you have a Nissian, Infiniti, Datsun, and looking to get repairs, mods, or builds. These are the guys. Look no further. read more

The level of professionalism, knowledge and customer service over at Specialty Z is second to none. I took my GT-R in for a dyno tune after a fresh full build and was very pleased with the results. Seb and Gregory were meticulous in detail while making sure that everything was performed properly and thoroughly. Shop is very clean and well organized. Every single staff member was well mannered and hospitable. They go above and beyond expectations to make sure you leave as a satisfied customer regardless of how much you spend. A lot of tuner shops have owners that are sitting high on their pedestal but these guys are very down to earth and that is harder to come by these days. These guys should be the benchmark on how a shop should operate. Thanks again guys!! read more

These guys are the most genuine and helpful people to work with hands down. They will do there best to answer any and all questions you may have to the best of there ability. You won't have to go anywhere else. thank you specialty z and Edgar for the help. read more

I can't believe Specialty Z was not on Yelp, so I am adding them. Greg and Sebastian know their 300ZX's and 350/370Z's inside and out. They are very knowledgeable, friendly and very reasonably priced. If you want to modify your Z or get it tuned, this is the place. It is worth the drive no matter where you live. read more

Believe the hype. These people are knowledgeable and helpful. They were busy but still gave me a check up on my ride. I got a free burito too. Awesomeness read more