custom builds & accessory installation

UTV Custom Builds & Accessory Installation

Looking to install upgrade to your UTV? Quickstyle Motorsports can get it done for you. Side by side upgrades, custom RZR and Can-Am builds, and UTV accessory installation, all done in-house at our Ontario shop and tested before you ride.

we can upgrade & modify all major brands

let our team handle your UTV Upgrades and Modifications

Our powersports shop is known for its quality repair work. Over the years we have gone the extra mile to help customers upgrade their machines, and we have now expanded that into a full Custom Builds department with a dedicated install team.

Quickstyle Motorsport's can help you source and install quality parts for your UTV or side by side. From a bolt-on accessories to a complete ground-up build, on Polaris RZR and Ranger, Can-Am Maverick and Maverick X3, Honda, Yamaha, Kawasaki, Suzuki, and Denago machines.

What we can do: 

These are the jobs that come through the shop most often:

  • Wheel and tire packages: sand paddles before a Glamis trip, beadlocks, or an all-terrain setup for rock and hard pack. Mounted, balanced, and torqued to spec in house.
  • Lift kits and suspension: shocks, spring rates, shock rebuilds, and wheel spacers. We set ride height and sag for your weight and the terrain you actually ride, not to a chart.
  • Lighting and whips: LED light bars, rock lights, chase lights, and whip mounts on fused, weather-sealed circuits that survive dust and water crossings.
  • Audio and electronics: sound bars, full systems with amps and subs, plus intercoms, two-way radios, GPS mounts, and dash gauges wired clean.
  • Doors, roofs, and windshields: half and full doors, aluminum and poly roofs, vented and folding windshields, rear dust panels, and mirrors.

That is not everything we install. For the full list of upgrade categories we handle, see the section further down this page.

What we do not do:

We do not do custom fabrication, meaning welding and machining parts that do not exist yet. We also do not handle custom graphics, vinyl wraps, or custom paint. If your complete build needs any of that, we are happy to refer you to the right vendors.

Timeline and turnaround

Turnaround is usually quick, but it depends on parts availability and how involved the build is. A straightforward accessory install often turns around in a few days. Bigger builds that need parts ordered take longer, and we will give you a realistic window before we start rather than an optimistic one. In most cases you leave the machine with us and we call you when it is ready.

Do we do street legal conversions?

Not at this time. California classifies UTVs and side by sides as off-highway vehicles, and the DMV will not register them regardless of what equipment is fitted, so a turn signal kit, mirrors, and a horn do not change the outcome. Other states, Arizona among them, do allow it. If you are registering out of state, ask our team and we will tell you whether we can handle the installations for your specific machine.

People often bring machines to our Ontario, CA shop from Nevada, Arizona, and nearby cities like Los Angeles, Rancho Cucamonga, Fontana, Riverside, Corona, Pomona, Chino Hills, Upland, and San Bernardino. If you have been searching for a UTV shop near you that can install upgrade to your vehicle.

Give us a call to confirm we can get the job done and schedule a drop off date.

Not sure if your build is possible? Ask us before you buy the parts.

what we do

Types of Upgrades We Install

Bring us a single bolt-on part or a full build list. Here is the work that comes through our Ontario, CA shop most often, on Polaris, Can-Am, Honda, Yamaha, Kawasaki, Suzuki, and Denago machines.

Suspension & Lift Kits

Lift kits, shocks, and spring rates. We set ride height and sag for your weight and the terrain you actually ride, not a chart.

Wheels & Tires

Wheel and tire packages, sand paddles, and beadlocks. Mounted, balanced, and torqued to spec before it leaves the bay.

Drivetrain & Performance

Clutch kits and tuning, drive belts, exhaust, and intake. Go up in tire size and we retune the clutch so a fresh belt does not cook.

Lighting & Whips

Light bars, pods, rock lights, and whips. Every circuit fused and sealed so it survives dust and water crossings.

Audio & Electronics

Sound bars, speakers, amps, and subs. Plus radios, intercoms, GPS, and dash gauges, wired clean and mounted to survive washboard.

Cages, Doors & Roofs

Cages, bumpers, doors, roofs, and windshields. Structural parts get torqued to spec, because protection that is not fastened right is decoration.

Seats & Harnesses

Bucket seats, harnesses, harness bars, and quick-release steering wheels. Mounting points matter more than the seat you pick.

Cargo & Storage

Cargo racks, bed racks, spare tire carriers, and cooler mounts. Mounted so nothing works loose on a long desert run.

Custom Powder Coating

Frame and component powder coating, available as part of a full build. Pick your color and we finish the machine to match.

testimonials

What riders say about our builds and repairs

Rated 4.8 stars across more than 100 Google reviews. Riders bring us RZRs, Can-Ams, and quads for everything from injector cleaning to full engine rebuilds, and a lot of them have been coming back for over a decade. These are their words, not ours.

Craig Walsh

rzr xp1000 · engine rebuild

Took my 2015 RZR Xp1000 because it wouldn't start. Turned out cylinder 2 had weak to no pressure. Had the engine rebuilt and it's up an running. They told me it would be about 2-3 weeks and it was done on the 3rd week. I also had bad wheel bearings that they changed for free. Larry and guys at the shop answered all my questions and where good to deal with.

Marco rod

polaris rzr 900 · pomona, ca

I bought a Polaris RZR 900 from Edgar and I have to say, I haven't had such a great buying experience until I went there. Not only is Edgar just a super cool dude, he is a Navy Vet and you could really spend all day talking with him. More than anything, they gave me a great deal, ensured the unit was good to go, and really wanted to help with absolutely anything I needed. If you need something, come here! Thanks for the great service guys!

Been taking my quads, sold those and upgraded to can am. For over 15 years i have been taking my toys to Larry and A Team. Great customer service and reasonable prices. Before you drop off call and ensure there is room. They are busy.

Exiquio Limon

can-am owner · 15+ years

Charlie Alarcon

rzr · sand & river toys

I have been bringing my sand toys and river toys here for years Larry and Edgar are awesome so is all the crew at qsm they are super honest and they take care of you like family. my toys are always reliable and I'm always confident when going out it feels good when you know the stuff your family is riding in is safe and reliable. They have even stayed a bit over to load the rzr on the trailer for my wife and daughters when I was stuck at work, now that's going over and beyond.

Jose mexia

repairs, upgrades & maintenance

These guys are bad @$$!!! They can fix and repair any toy at a very reasonable price! Larry and the crew are very people-friendly and show genuine interest with customer problems or concerns. I will continue going to QSM for all my repairs, upgrades and maintenance on my toys!

Elmer Bolanos

polaris razor · fuel injectors

I can't remember the young fella that helped me out cleaning my Polaris Razor fuel injectors and was so helpful. After I replaced them my Razor idles better. I recommend this shop they helped me right away. Thank you

testimonials
motorsport sales & repairs near you

Located near los angeles, CA

Oly 30 min drive from downtown LA. Contact us to confirm we are available for a vehicle drop off!

ontario, Ca

Whether you’re coming from Los Angeles, Riverside, Rancho Cucamonga, Fontana, San Bernardino, Chino Hills, or even making the drive in from Victorville or Palm Springs, we’re the go-to destination for off-road vehicles, upgrades, and trusted repairs.

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custom builds & accessory installation

Ready to build it?

Bring the machine, the parts, or just the idea. We will tell you what it takes, source what you need, install it properly, and test it before you ride.