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    Autocross Performance & Muffler

    4.6 (57 reviews)
    Open 9:00 am - 5:00 pm

    Autocross Performance & Muffler Photos

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    Nieves A.

    J.R. Is awesome and very knowledgeable!! I wanted to give my 2022 Corolla LE just a little more sound, I didn't want to sound racer. He knew exactly what I was looking for and recommended the Borla muffler. I couldn't be happier, it's exactly what I was looking for!! Thanks to all the staff at AP&M!! Definitely recommend this place!!

    2006, F450 king Ranch Dually,long bed king cab   Try the Hydrogen clean Your vehicle will love you

    You could trust. These guys are just about anything that has to do with the exhaust system and more. Also, he does the hydrogen clean that removes all the carbon from yours motor. It really works. I'm getting an extra 50 miles a tank on my F450.

    JR is awesome. He is very knowledgeable. He will take his time with you and work with your budget.

    Thank you to the team at Auto Aid. You guys always take care of me and I don't trust anybody else to do my exhaust
    eric j.

    Thank you so much to everybody at autocross. I don't trust anybody else to do my exhaust but you guys. Once again thank you

    2016 Dodge charger

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    26 days ago

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    7 months ago

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    1 year ago

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    1 year ago

    Fast and reasonable. I would come back if I needed anymore Exhaust or muffler service.

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    11 months ago

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    1 year ago

    JR is very knowledgeable and committed to solving whatever your problem is. His expertise is beyond comparison!

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    1 year ago

    JR was very polite and informative he gave me a great price and excellent workmanship. I would definitely recommend Autocross performance

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    2 years ago

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    1 year ago

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    3 years ago

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    2 years ago

    Great customer service! Really helped me out with getting how I wanted my car to sound. Also was very quick in and out!

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    2 years ago

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    2 years ago

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    2 years ago

    I was in n out in 20 min for Alfa Romero guilia exhaust job sounds just like a 2500$ job for 170$

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    3 years ago

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    2 years ago

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    3 years ago

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    2 years ago

    JR is the man! Excellent service and recommendations based on what you're looking for! Couldn't be any happier, Thank you!

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    2 years ago

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    4 years ago

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    3 years ago

    brought my integra in to quiet it down some and got it to sound exactly how i wanted it too and very helpful. 10 out of 10

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    5 years ago

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    8 years ago

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    4 years ago

    Very helpful and quick, explained all the details and showed me several different options to satisfy my taste.

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    7 years ago

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    9 years ago

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    11 years ago

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    Page 1 of 2

    Ask the Community - Autocross Performance & Muffler

    Review Highlights - Autocross Performance & Muffler

    Well, JR answered the phone and was so polite and knowledgeable and spent quite a bit of time talking with me.

    Mentioned in 24 reviews

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    Mario's Auto Diagnostics - Coil

    Mario's Auto Diagnostics

    (12 reviews)

    Today was my lucky day and the first thing I did when Mario was done was rush to write this review…read more I have an older vehicle that was running horribly. I had been told that I needed a tune up but the quotes were a lot so I was putting it off. Well it took a turn for the worse and was getting close to undriveable. I made an appointment with a reputable auto repair shop in the area to get it taken care of. They looked it over and called me and said they were declining to work on it because it had over 10 codes on the OBP scan, they had to jump start it from the parking lot (news to me) and could barely drive it into the bay. They recommended taking it to the dealership (out of the question) or start looking for a replacement vehicle. I left dejected, thinking it was a goner. I called around looking for someone who would be willing to work on it and right away. One call was to Mario, who had a mobile service. I wasn't sure about the mobile thing as opposed to a brick and mortar garage but was willing to roll the dice because he had an opening the following morning. He was running behind due and I considered going to a local shop because I thought he might not be able to get to me and I needed it done that day and couldn't put it off. However, I just had a good feeling about him, and because of our phone conversation he really demonstrated a lot of knowledge about my vehicle. I decided to wait it out and have faith in him, and it really paid off. Not only is my truck purring like a kitten again but his cost came under what the shops were charging. In fact, I couldn't even get a firm quote from other people- they were leaving the door open that the price could go up depending on what they encountered and were also talking about $200ish diagnostic fees in addition to the repair cost before the work was done. I'm gonna be calling this guy, and I'm gonna keep his ass busy. I had a trusted mechanic for over 20 years who passed away, and so I was a free agent looking for another good guy. I think I'm officially off the market and I have three cars that need upkeep. 100% satisfaction today. He's definitely a master of his craft and was very fair and honest from soup to nuts. Now if you'll excuse me I have to get back on the gas.

    We had a great experience working with Mario. Our old Honda Accord wouldn't start and we ended up…read morerealizing we needed a new alternator for it. Mario came to us and got the job done effectively. His communication was excellent and the price was fair. We recommend him 100% due to his punctuality, great communication, quality service, and professionalism. You can trust him to get the job done and to be honest and direct.

    All Star Automotive

    All Star Automotive

    (420 reviews)

    Dan was great to work with. I really appreciate that he doesn't pressure you into repairs that…read morearen't urgent. He takes pictures, explains what he sees, and helps you understand what may need attention next without making you feel pushed. We had our brakes repaired, and he was kind, patient, and descriptive in explaining why they went straight to grinding, since I had never experienced that before. All Star Automotive has my business! Just a heads-up: parking can get crowded, so come with a little patience.

    Update: My review…read morereflects my family's experience and is based on events we personally observed. After seeing your response, I revised my review to ensure it accurately and fairly describes our experience. I stand by the review and have no interest in engaging in a public dispute. I wish you and your business the best. OP Based on my family's experience, I would strongly encourage potential customers to read both the positive and negative reviews before making a decision. A relative of mine spent several thousand dollars on repairs here, but the vehicle's issues were not resolved, and she ultimately replaced the vehicle. We were extremely disappointed with the outcome. In our interactions, we felt the owner was dismissive, condescending, and disrespectful. During one conversation, he placed his hands on the arms of two female family members in a way they found inappropriate and unwelcome. We also felt that our concerns were not taken seriously and that comments were made that came across as dismissive because they were women. Based on our experience, we would not return or recommend this business.

    Autocross Performance & Muffler - autorepair - Updated June 2026

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