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    Definitive Performance

    5.0 (1 review)

    Services - Definitive Performance

    Auto customization

    Auto electronics installation

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    6 years ago

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    O'Reilly Auto Parts

    O'Reilly Auto Parts

    (6 reviews)

    I currently work for the bank and had a pleasure meeting a manager by the name mark that works at…read morethe Moreno Valley location. He mentioned that I could bring my car to get battery tested and they also could help me with taking the battery out. With this information, because I live next to the grand terrace o Reilly location, I took my car and spoke to an employee by the name Jesus. Jesus was doing fine by explaining to me that he could assist me with this matter up until the manager budged in and said how can I help you. I told her kindly that I was already talking to Jesus but she said she was the manager and that she would like to know what's going on in a very rude way. After explaining to her that I was looking for help with charging my bmw battery and she cut me off and said yes we could help but are you ok with waiting outside for 2 hours? I asked her is it not possible to wait inside and she responded back with I don't care where you wait, that is not the problem. Overall, the experience I had with the manager in Moreno valley by the name mark was an amazing experience and a complete different experience when it came to the manager at the gran terrace location by the name NORA.

    I came in for two simple things: to get the battery in my car key replaced and to have the rear…read morewiper changed -- both easy tasks if you have the right tools and basic knowledge. Unfortunately, neither one was done correctly. The battery in my key fob was installed wrong. When I pointed it out, the employee argued that my car's system must not be working -- even after I explained it was new and replaced less than a year ago. He then claimed the old battery was installed the same way. Unbelievable. Then, while trying to replace the rear wiper, he nearly broke the handle and admitted, "I don't know how to change it." There is more to it but I just went back and asked for my money back and left. To make it worse, the manager's attitude was just as bad -- completely dismissive and unhelpful. Very disappointing experience. You'd expect O'Reilly's to have trained staff who know the basics and treat customers respectfully --solving car issues accurate and well done!

    4 West 4 Wheel Drive - 2020 Gladiator (Dolly)

    4 West 4 Wheel Drive

    (53 reviews)

    Exceptionalism by 4 West Motorsports…read more When I first reached out to Fox Motorsports for guidance on improving our 2019 Jeep Rubicon, they referred me to a few top-tier shops in SoCal. After some due diligence and detailed analysis, I ultimately chose 4 West Motorsports--and that recommendation turned out to be pure platinum. From the start, Justin demonstrated exceptional technical knowledge and a rare ability to translate that into a truly custom solution. Our Jeep is primarily a daily driver for our daughter, with occasional off-road use--but it's not a rock crawler. It sees lots of highway time, including through winding mountain passes with high winds and road camber that previously made the ride feel unsettled. Rather than jumping to conclusions or offering a cookie-cutter package, Justin took the time to thoroughly understand our current setup, our daughter's driving habits, and our long-term vision for the build. He asked about everything--from current tire and wheel specs to previous upgrades and future aspirations. He understood that this wasn't just about bolting on new parts--it was about crafting a solution that respected our existing geometry and elevated it. What sets 4 West apart is their technical precision in matching component types that complement both the vehicle's natural behavior and intended use--whether you're building a desert runner, rock crawler, Overlander, or hybrid rig. They factor in how every mod affects your steering, suspension articulation, handling, and ride comfort. For our build, Justin recommended a thoughtfully selected combination that included Fox shocks, a Fox sway bar, a RockJock track bar, and a Hellwig rear sway bar, all paired with a professional alignment that corrected significant deviations. After the install, one of their team members personally test drove the Jeep--on the freeway and through twisty roads--to ensure it performed exactly as intended. The result? The Jeep now feels planted, composed, and predictable--a dramatic improvement that gives us peace of mind knowing our daughter is driving a rig that's safe, responsive, and trail-ready. This isn't just a shop--it's a think tank for off-road performance. Their ability to engineer a solution that balances daily drivability with future trail capability is unmatched. They don't just install parts--they understand how every element fits into the broader ecosystem of your build and make recommendations that are both forward-thinking and technically sound. If you're serious about building your rig right the first time--or want to course-correct and elevate your setup--4 West Motorsports is where you go. I can't recommend them enough.

    Justin was amazing! Their team did an amazing job on my AT4 fox shocks install…read more Thank you!

    Definitive Performance - autocustomization - Updated May 2026

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