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    3.8 (12 reviews)
    Closed 8:00 am - 6:00 pm

    Services - K-Powered

    Auto customization

    Check engine light

    Engine oil light diagnosis

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    Auto general diagnosis

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    Oil changes

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    Routine automotive maintenance

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    A new, and improved rebuild.
    Israel P.

    I want to personally thank Navid and his crew: Thank you for taking good care of my wife and I. Because of your professional care, and your attention to detail; I couldn't bring myself to choose anywhere else I'd like to bring my vehicles to. I've been to your shop for multiple reasons within the past couple of years, maybe 3 years. From restoring my DC5, to major to minor maintenance of my wife's ride. I've gotta say, "It's rather addictive going into your shop for all the potential that goes on there." In great appreciation, Israel

    Put it this way...I was not able to shift into 5th and 6th gear.  Within a day with them already being busy they fixed the problem!
    Johnny F.

    A big thank you to these guys! Amazing work on vehicles. Where others try and dig money out of you, Navid the owner challenges the competition and finds the issue, fixesit and with an amazing price. A very intelligent man. I look forward to working with this shop.

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    2 months ago

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    8 months ago

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    1 year ago

    Best tune in shop in so cal ! Won't take my car anywhere else thank you Navid will be back for more high end mods !

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    5 years ago

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    6 years ago

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    8 years ago

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    7 years ago

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    8 years ago

    bad mechanic trying to upsell everything, doesnt pay attention to detail, cant even make an oil change right. never again

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    Integrity Mobile Auto Service

    Integrity Mobile Auto Service

    (4 reviews)

    Desile aka Robert Simmons Is a con artist. MY car wouldnt start so I called Integrity mobile…read moremechanic and Desile showed up and said my key needed to be reprogrammed to the ECM so he charged me 350 .00$ when it didnt work he said I needed a new ECU. So I ordered a new one and he was supposed to install it and program the key. When the part came in we made a appointment for him to come and complete the job that he had been paid for. He was a no call no show because he knew that that was not the problem. Anyway I sent the part back because it wasnt even the right one for my car. So I asked him to refund the money and of course he said no. I told him I was going to file a small claims case against him and to please give me his address and of course he wouldnt do that either. DO NOT TRUST THIS THEIFE !!!!!

    We hired "Diesel" (real name is Robert Simmons) and his associate, Vonte King, to do several jobs…read moreon our 2007 Chevrolet 2500HD. Business is listed as Integrity Mobile Auto Service, but appears to have had a previous name of Simmons Mobile Auto Repair. Based on his advice, we hired him to work on installing a Downpipe that he insisted as a preventative measure would protect our Duramax diesel from a bolt that he explained would come off from soot accumulation, and destroy the turbine and engine. We gave him $2800 for the job, then he called and said he needed "only $500 more" because the part he ordered didn't come with a Downpipe which was supposed to be shipped along with the other part he ordered. That was a lie. That was the bait needed to get my money. I found out after researching that nothing needed to be done; this was a frivolous and unnecessary repair. I called to cancel the job. He promised to refund our money which he hasn't done, and now he has blocked me on phone and texts. He's made excuse after excuse to delay my return. I feel that he took advantage of a senior on a fixed income to con me only to make money off of me as a cash cow, and after reading other reviews of other people he's done this to, I see a criminal intent and a pattern. I waited for a refund for three weeks, and after he insisted, promised, and done otherwise, Robert Simmons and Vonte King haven't responded to my texts or phone calls, so I'm assuming what I'm seeing a lot of other people are saying about him. He's a scam artist, and you need to take your business elsewhere. Robert's MO is as follows: he will most likely rip you off after having a few smaller repairs and transactions first to gain your trust. About four or five jobs in, which he will perform satisfactorily, he pulls off his scam by adding a repair that shouldn't be done or has no reason for being done. Most if not all mobile services are scammers and Robert did his due diligence in proving himself to support this idea as a scammer and a liar.

    K-Powered - autorepair - Updated May 2026

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