Kartunz has been in business for over fourteen years & in that time we’ve grown to specialize in modifications of Cars, Trucks, Boats & even Motorcycles.
What makes us different as an independent shop is our ability to offer every client the absolute best product for the job. Combined with our broad automotive knowledge, we are always proud to give you a tailor-made experience that our competitors just can’t match.
No matter what your vision may be, we can turn it into reality!
We’re proud to announce that Kartunz has been selected as a provider for the Mercedes-Benz Expert Upfitters Program. This designation recognizes our commitment to providing the highest quality van upfitting solutions for your Sprinter or Metris van.
To become a certified Expert Upfitter, our team underwent extensive training and certification from Mercedes-Benz. This rigorous process ensures that we have the knowledge and expertise necessary to deliver the best in custom van solutions.
When you choose Kartunz for your van upfitting needs, you can trust that you’re receiving the highest quality service and the most innovative solutions available. Let us help you unlock the full potential of your Mercedes-Benz van today.
WINDOW TINT & PAINT PROTECTION FILM |
AUDIO & VIDEO |
WHEELS & TIRES |
SUSPENSION |
EXHAUST |
POWDER COATING & CALIPER TREATMENT |
ENGINE PERFORMANCE & TUNING |
CUSTOM PAINTING & AUTO BODY |
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CONTACT KARTUNZ |
Great customer service (Ava is the man!!), quality work, attention to detail (they even painted the wheel counterweights to match the charcoal wheels!) with competitive pricing. They have my business for life!
This place is amazing! We were referred to Kar Tunz by East Bay BMW when we bought our X5 in 2015 to have an aftermarket back-up camera installed, as our car didn't have one. Sadly, we never followed through...Fast forward to Dec. 2018, when we purchased a 2019 MBZ GLA. from Pleasanton Mercedes. Again, they referred us to Kar Tunz to have our brake calipers painted, instead of buying new colored ones. Since two reputable dealerships referred us to this company, we finally thought we should check them out. My first call to Kar Tunz, I spoke to Rob (the owner) & I immediately felt at ease. His price for the calipers was fair & he was able to get me in pretty quickly & the job was done in one day. My husband liked it so much, he had his brake calipers done as well and finally got that back-up camera! After two great experiences, we were hooked. I've been back to have new rims & tires installed, all of the chrome on my car blacked out & they installed a dash cam. Hubby is going back for a dash cam & blacked out tail pipes. Rob & Ava are awesome. They are extremely knowledgeable & they don't pressure you to buy. They have plenty of business. I highly recommend that you check them out!
UPDATE: We've purchased two new cars since my last review. We purchased a 2019 Land Rover (Land Rover Livermore also referred us to Kar Tunz) and brought it in for some minor customizations & a 2020 BMW X5. Ava helped us with the customizations on this car & we couldn't be happier. They also sold the car's original rims & tires for us, which is a great service. Check them out. You won't regret it!
The team here is on point! Great job cleaning up the hot mess of wires left over from prior install on my Jeep and making sure my remote start works! If you need a professional job done this team rocks! Highly recommend coming here if your looking for someone who does excellent work.
Solid install of a JL W3, such knowledgeable back and forth banter with the shop employees. A treasure of the area
As a long time loyal customer at Kartunz, I always enjoy the initial consultation to figure out the best options for upgrading my speakers and car sound systems. They always have great suggestions and I'm always amazed with the finished product!
Kar Tunes was referred to me by my service coordinator at Jaguar. I wanted to get some custom work done on my vehicle and called them up for pricing. Very friendly, pleasant and helpful over the phone. I set up an appointment to bring my Jaguar so they could take a look. I was greeted by Ava who is very knowledgeable and understood what I was looking for. He provided me a quote, went over the pricing and explained the process to me. I decided to paint the calipers on my Jag and had a custom logo put on them as well. Ava and his staff are very professional, pay attention to detail and really took care of my car! I will be having some after market speakers put in my vehicle to upgrade my stereo system in a few weeks because I trust their service and they stand by their work !!
ILOVE this place. They have taken care of my cars and created something out of nothing. Thank you guys for being amazing.
