Neptune Speed

I’ve been coming to Neptune a couple years now and in my experience, it’s rare to find a shop where I have so much trust in the mechanics. They are all nice, respectful, and knowledgeable, but I have generally just dealt with David and Yohei, who are both fantastic. Don’t let their age fool you, they know their stuff. They have done great work on my Camry these past few years. I think their prices are fairly reasonable, especially for any major mechanical work or tune ups, their prices have beaten the Toyote dealer’s time and again.

Back again to get the oil changed in the truck. The guys were fast, clean, and thorough. I wanted to put a higher grade oil in since the truck is 11 years old, but I was told it would be expensive and that it wasn’t necessary since the mileage on the truck is so low and the engine is in very good condition.
Saved me $ 15. :)
Honest. Friendly. Quality work. I REALLY wish they worked on bikes. Haha.
Thanks again, Neptune!

Trying to find an honest mechanic or shop seemed like trying to find a leprechaun or a unicorn but they do exist and Neptune Speed IS THAT SHOP! They are very honest. They don’t try and up-​sell you on some bogus stuff.
I will never take my cars to anywhere else. AWESOME PLACE, GUYS! A+

Best mechanic shop in SoCal
They’re good at all kinds of car especially Japanese car and rotary powered car like rx7 and rx8.

My family has been coming here for more than a decade and they take care of EVERYTHING for us– from oil changes, to transmission problems… We don’t know anything about cars and have been blessed to find someone who is fair, honest, and does great work. They are efficient, friendly, helpful, and most of all professional and kind. We wouldn’t go anywhere else!

This guy is amazing. I have a Mazda rx-​8 and it has given me so much trouble. When it was under warranty I would take it to the Hb Mazda dealership and it seemed like it would be there at least once a month. Since warranty has run out I’ve taken my car here 2 in the past 2 years and never had any trouble with the quality or price of the work.
Great shop, not that expensive and quality work. I can not state how much I appreciate this shop.

This was the best and most pleasant Autoshop experience of my life.
I found Neptune Speed on Unilocal out of necessity by being screwed over by another mechanic. I was so beyond frustrated and disenchanted with mechanics. The previous mechanic and charged me $ 1200 when they had quoted me $ 500 and broke more of my car including the part that I had paid for them to fix. I had never actually used Unilocal before but desperate times call for desperate measures. Neptune Speed seemed to have the highest reviews within my area so I figured I’d give them a shot.
Once I called them I realized that they specialize in much nicer performance cars than my average PT cruiser and that they were booked practically a month in advance. Despite not being the type of cars they prefer they kindly obliged me.
We scheduled an appointment and I brought my car to them. They quickly identified the problem and were extremely pleasant and professional to talk with. Still being weary of mechanics after my horrible experience I expressed my dissatisfaction with the previous mechanic.
They fixed my car extremely quickly and even walked me through where and physically how the other mechanic had broken my car. Including giving me the parts I had paid the last mechanic to replace which I had to pay Neptune to re-​replace.
On a personal level. These guys are just good men. I ran into one of them almost a year later randomly at the post office and he approached me, remembered me by name and the exact make, color, and problem with my blue PR cruiser. This alone would be reason enough for me to go back.
On a professional level. It’s been a year and a half and what they fixed has not acted up ONCE! For more details about what was wrong with my car read my negative 1star review of «Ervin Auto»
I STRONGLY recommend Neptune Auto again anytime and I plan on going in soon to get my car checked by them again!!!

I like these guys a lot!
I was worried when my brakes started making a weird, screechy sound. I brought my car to Neptune Speed without an appointment, and even though they were busy, one of the guys took a little time to check my brakes out. 5 minutes later he came back and reassured me that they were fine for at least another 10,000 miles and that the sound was probably due to some harmless dust. They didn’t charge me a penny. I think a lot of other mechanics would’ve taken advantage of my concern and urged me to buy new brake pads on the spot. Needless to say when I actually need new brake pads, I’ll be going to these guys. Thanks!

Master Yoshi knows how to spin your rotors and turbos.
Some say he charges too much. I say you get what you pay for even if he really does charge a lot.
He’s done racing before. I’ve raced my car throughout the years. He’s definitely one of the very few mechanics I could fully trust at the track.
Highly recommended.

These guys are first class people.
After Honda messed up my vehicle I got on Unilocal to find a good shop to fix what they did. SO GLAD I found this place. They’re super nice, affordable, reputable, and they fixed the issues that Honda created. The best place to take your car.

Excellent shop! I had my BMW 5 with over 210,000 miles worked on here. It was having stuttering idling and acceleration issues and this place was able to identify the problems and fixed it quickly. They had concerns about one part – thought that it needed to be replaced, however, when they went in and saw that it was okay, they left it alone (signs of an honest mechanic). He showed me the parts that were causing me problems (a few cracked hoses). This shop is popular, so it may be prudent to call ahead and make an appointment; they will not take in more work than they can handle (another sign of an honest, meticulous mechanic)

My original review of this place was 1 star. I wasn’t happy about my car’s performance after bringing it in for a routine 100,000 mile maintenance. When I took the car home I discovered a cylinder misfire that was brand new. I was furious that they would let me drive off the lot like that. I called David and left a voicemail about my car’s issues. This is where I started getting heart palpitations, because good, honest mechanics are so hard to find, and I had yet to actually stumble across one in my 18 years of driving. Admittedly, I was happy with the original price to do the work, as I had the same service done on my previous vehicle about 10 years ago, and it cost twice as much when I took that one to the dealership, so Neptune Speed’s prices are absolutely competitive… but at what ultimate cost? They were saying it could be the ignition coil, but these problems didn’t exist prior to the maintenance, so I was thinking this was the beginning of several costly repairs.
They were frantic about the situation. I don’t know if it was my tone or their dedication to the trade, but they insisted I bring it back in as soon as possible so they could fix it. Well, again, is this where the billing machine actually starts? Simply put: no. They spent the day swapping out the engine coils and testing a number of other possible issues, but ultimately found that the new spark plugs provided by Ford were defective. They swapped them out under their purchase warranty, and put my car in front of me good as new that afternoon. The best part? I wasn’t charged one additional cent. They felt terrible about the problem that occurred, and I saw as others have previously posted, that they care about their customers and the cars that are brought in.
Adversity is how true character is revealed, and they faced many challenges with my car that were related to issues created by Ford. They handled everything with grace and poise, and they have earned a customer for life.
Thank you, Neptune Speed!!!

Believe me when I say that this is a great shop! Yoshi and David have taken excellent care of my wife’s Acura and I trust them completely. They are knowledgeable, detailed and thorough and they are easy to deal with too. They have a lot to offer their performance clients but they also have a lot to offer people like us who value a skilled shop that does excellent maintenance work at a very fair price. Check out NepTune Speed!

Honest
Trustworthly
Honest
Accomodating
Honest
Honest
Need I say more?
David was extremely friendly and accommodating. I scheduled a Saturday appointment a month in advance for new F/​R pads on my S2000. A few days before the appointment, I found a great deal on a Mugen header and asked him if he could fit it in the same time slot. He said NO PROBLEM! I also asked if he could install a 4-​point front strut bar and rear lower tie bar. I dropped off the car first thing Saturday morning and (a little nervous) handed over the keys to my pristine low mileage S2000. I got a call later in the afternoon from David telling me that the header and brakes were almost done, but he could not fit in the install of the bars. No problem. I came by to pick up the car and after paying, was on my way.
It’s so difficult to find a shop that you trust, mechanics that are just honest down-​to-​earth, yet knowledgeable and capable of the job, but this IS THE shop. I would not trust anyone else, aside from myself, with my 2000 S2000 with 30k miles on the clock — all OEM aside from the Mugen header.
Highly recommended shop. Did I mention they were honest?

Taken my car here twice, and both times I’ve left satisfied. Price is right and the owner is both knowledgable and friendly.
Just purchased another car and I know that should anything arise that I can’t fix myself, this is the first place I’ll turn!

The painful experiences of taking my car to a mechanic are finally over! I have never seen an organized and honest auto shop like Neptune.
I took my Toyota Prius there for a 60mile regular check up and they charged me a very fair amount, did a great job.
Second time my boyfriend took a car there for inspection as we wanted to buy it from craigslist and get an inspection beforehand. He was very helpful and thorough and initially he quoted $ 20 for the whole 30 minutes inspection. At the end he didn’t charge us anything, because we ended up not buying the car.
I want to give a big shout out for this place and a thumbs up for their customer service.

Knowledgeable, trust-​worthy, honest mechanic. And really, isn’t that what you’re looking for when your car suddenly stops working?
I had my old Civic repaired there 3 times, and each time the mechanic would tell me exactly what he thought was wrong, and then give me options as to what I could do. He even saved me money when he asked if I wanted to use a refurbished part instead of a new part.
And the best part… every repair was spot on. Bottom line, this guy knows what he is doing, and doesn’t gauge you to get there. Flat out the only guy I would trust my Honda to repair (besides the dealer).

Definitely THE best /​honest if not the only mechanic i’d go to
I go there whenever I get an oil change or need some work done on my rx-​8 if im not able to do it, he even gives a first time customer discount which i found really funny and awesome at the same time (awesome!) he also does a free CEL diagnosis!
short story, when i first had my 8 I had a misfire on the 2^nd rotor and he even took the time to get fresh ignition coils for me and put them in my car to see if that was the problem, turns out it was the spark plugs and even then he didnt charge me for the labor for the ignition coils (what an awesome guy!)
all that im trying to say is, if your looking for a top shelf mechanic and who won’t lie to you, Yoshi is the man to go to!

I’ll admit that having a vagina comes in VERY handy sometimes… (You ladies know what I mean!!!) People yield for us in a busy intersection, offer to let you go ahead of them in a long line, some give up their seats on a busy bus or subway… and some of you… like me… have talked your way out of a traffic ticket by playing the sweet innocent «Huh? Wha? There was a red light WHERE?» card.
But when your car breaks down and you need to get it repaired, being a woman is possibly the worst possible senario. You’re basically a walking target entering a man’s world saying «I don’t know $*%& about cars, please charge me whatever you wish».
But there is a reason Neptune Speed gets 5 stars on Unilocal.Yoshi is like the older brother I wish I had. Polite, honest, and goes out of his way to make sure you don’t get ripped off by the scary world of car mechanics. His pricing is very fair, seeks out the best parts for your car, and your car is ready when he says it will be… he and his co-​worker work at «Neptune Speed» because I’ve never had to wait more than 2 days to get my car back.
Yoshi has saved me a ton of money getting my brakes repaired, my fuel pump exchanged among others… in addition, rather than telling me «Your check engine light is on and it will be $ 250 for (JUST) a diagnostic test» like every dealership I’ve been to… he went ahead and did it for me anyway, didn’t charge me a dime, and flat out told me… «Yeah, the check light is on because of a small problem with the oxygen emission sensor and it’s totally worthless to get it fixed so don’t worry about that». I mean … talk about lookin’ out! Thanks Yoshi! You’s my bro’ for realz! :)

I first learned of Neptune Speed through a friend and Im glad i did!
They specialize in Rotarys, but can handle pretty much anything. Yoshiya-​San is very knowledgeable and nice. He doesnt mind sitting there and answering all your questions and explaining things to you.
I was even there when they were working on the Weld 240sx that was brought here straight from Japan. These guys are awesome.