1. Rallysport Engineering

    1. Rallysport Engineering

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    Costa Mesa, CA

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    Rallysport Engineering

    4.7 (173 reviews)
    Closed Closed

    Services - Rallysport Engineering

    Auto brake repair

    Auto engine repair

    Rallysport Engineering Photos

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    Recommended Reviews - Rallysport Engineering

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    Reviews With Photos

    Francis D.

    Raul and his team at Rallysport are hands down the best Subaru specialists in OC! They're extremely honest and won't try to upsell you on anything unnecessary. Had a different shop botch an engine swap and gave my car back with a limp transmission so I had to bring it to a place that knew what they were doing. Luckily I found Rallysport and they were able to diagnose the issue (damage to transmission caused by negligent work from previous shop) and I was able to fix the issue quick and get my car back to driving normally

    Sample of my car that's been rejected from auto shops for being too modified.
    Tyler T.

    These guys are awesome. My FRS is pretty heavily modified, so naturally when it started making a strange sound, I was worried. I took my car to a few local shops and they turned me down due to it being too modified. RallySport Engineering didn't ask any questions and got to work. Turns out it was a couple of worn pulley bearings. Quick job, dropped my car off. Diagnostic and work done in a day for a good price. No headaches. Oh and the guys are hilarious as well. Highly recommend.

    State of the car after sitting in the dust shop for 2 weeks.

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    3 months ago

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    14 days ago

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    2 months ago

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    2 months ago

    Great customer service! The service was top notch and communication was great. Highly recommend them!

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    3 months ago

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    3 months ago

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    3 months ago

    I was recommended by a friend to Rallyport engineering . Thank you so much. Staff are very friendly.

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    3 months ago

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    1 year ago

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    10 months ago

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    8 months ago

    Business owner information

    Photo of Raul M.

    Raul M.

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    3 years ago

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    4 years ago

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    2 years ago

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    3 years ago

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    2 years ago

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    7 years ago

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    Raul M.

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    4 years ago

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    5 years ago

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    8 years ago

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    5 years ago

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    3 years ago

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    3 years ago

    Did a great job on transmission and differential maintenance. Way less than the dealership

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    4 years ago

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    4 years ago

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    Page 1 of 5

    Ask the Community - Rallysport Engineering

    Review Highlights - Rallysport Engineering

    Raul and Chuy took over and did a full service and detail while keeping informed the whole way.

    Mentioned in 72 reviews

    Read more highlights

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    Performance Auto Service & Repair

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    (282 reviews)

    I can't express how grateful I am for Performance Auto Repair in Costa Mesa. Even though I live all…read morethe way in Chino, something about their reviews made me feel like I could trust them -- and I was right. When my SUV overheated and the engine failed, I was overwhelmed. But the moment I spoke with them, it felt like a weight lifted. They understood exactly what was happening before they even saw the car. Instead of pushing a costly $6,000 engine replacement, Byron found a way to rebuild the engine through a machine shop, saving me thousands. That kind of honesty is rare. The repairs took time, but they never rushed. They kept us updated, checked every detail, and refused to release the vehicle until they were absolutely sure there were no leaks, no issues, no surprises. After dealing with another shop that returned our Honda Pilot with oil leaks, this level of care meant everything. What stood out most was their integrity. Their kindness. Their commitment to doing the right thing even when it takes longer or costs them more effort. If we lived closer to Costa Mesa, we'd bring every one of our vehicles here without hesitation. There truly aren't enough words to describe how thankful I am for Byron and his team. They didn't just fix my SUV -- they restored my trust in what an honest auto shop can be.

    An honest expert mechanic that I'm so grateful to have found. Byron has been keeping my cars…read morerunning for years. I highly recommend him but low-key I want to gate keep this place. I don't want the spot to be blown up, but hey, when you work so hard, you deserve to gain a loyal and strong following.

    DNZ Automotive

    DNZ Automotive

    4.6
    (161 reviews)

    had a situation that my car couldn't accelerated and they fix it quickly. very professional and…read moreexperienced

    I previously left a five-star review because I had a good experience here. At the time, EU was…read morehonest enough to tell me I didn't need a tire rotation, which saved me money as a student. Because of that, I came back for multiple oil changes. Unfortunately, my most recent visit was completely different. I was charged a high price for what should have been a simple oil change and cabin/air filter replacement, and I ended up waiting about two hours for the work to be completed. After talking it through with someone more familiar with car maintenance, it became clear that I was likely overcharged for a job that should have been quicker and more reasonably priced. What made the experience worse was the interaction before my appointment. When I asked for clarification about being told I may need "air," EU laughed at me for asking. I'm neurodivergent and sometimes take things more literally, so I was just trying to confirm whether I was being charged for something that is often free. Instead of explaining, I felt mocked for asking a simple question. Because of this experience, I no longer feel comfortable or confident returning here. I'm sharing this as a caution for other customers--especially women and neurodivergent people--who may not be as familiar with car maintenance and rely on mechanics to be honest, respectful, and transparent.

    Rallysport Engineering - autorepair - Updated July 2026

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