Polaris RZR Pro XP4 Ultimate Mods — My Full Build List and Honest Reviews
By Trail Tested TX | Houston, TX
I’ve been building my 2022 Polaris RZR Pro XP4 Ultimate and these mods have taken it from an already impressive machine to a purpose-built trail weapon. If you’re researching Polaris RZR Pro XP4 mods and want real-world opinions from someone who actually runs this machine through Texas mud, sand, and rocks — you’re in the right place.
The Pro XP4 Ultimate already comes loaded from the factory — Fox suspension, premium audio, and more. But there’s always room to push further. Here’s everything I’ve added, what I learned along the way, and whether I’d do it again.
The Build at a Glance
| Mod | Brand | Worth It? |
|---|---|---|
| Winch | Viper Midnight 4500lb | ✅ Highly rated in SxS forums |
| Winch Mount | Motoalliance Viper UTV Winch Mount | ✅ Perfect fit |
| Portals | Super ATV 6″ GDP Portal Gear Lift (30% reduction) | ✅ Massive upgrade — wish I went 45% |
| Tires | 36x10x18 ITP Cryptid | ✅ Excellent all-terrain performance |
| Wheels | 18×7 MSA M34 Flash | ✅ Clean look, solid build |
| Dual Battery | Polaris Secondary Battery Kit + Isolator | ✅ Essential for accessories |
| Overhead Fans | Kemimoto Dual 8″ RGB Cab Cooling Fan | ✅ Works great — required modification to fit |
| Spot Lights | Nilight 18W LED Spot Lights | ✅ Solid budget lighting option |
| Light Bar Brackets | Tusk LED Light Bar Brackets | ✅ Low profile, great fit |
| Front Camera | Kemimoto Front Camera Kit | ✅ Great visibility addition |
| Voltmeter | Mictuning Dual Battery Voltmeter | ✅ Essential with dual battery setup |
Why These Polaris RZR Pro XP4 Mods Made My List
Viper Midnight 4500lb Winch + Motoalliance Winch Mount Plate
A winch on a side-by-side isn’t optional if you’re running serious terrain — and the Viper Midnight 4500lb UTV Winch is one of the most talked-about options in SxS forums for good reason.
The Viper Midnight Series is IP68 rated — fully sealed against water, dust, and dirt. If you’re running mud and water crossings the way we do in Texas, waterproofing isn’t a nice-to-have, it’s a requirement. The winch comes with 50 feet of black synthetic rope which is safer and lighter than steel cable.
Motoalliance Viper UTV Winch Mount Plate: The mount plate fit on the 2020-2026 Polaris Pro XP is excellent — no fitment issues, everything lined up perfectly during installation. One note: the front fascia powder coat is showing some peeling around the edges, but given the mud and sand conditions we put the RZR through, that’s understandable wear.
Winch Rocker Switch — Mictuning 7 Pin Momentary Laser Rocker Switch: I added a cab-mounted rocker switch so I can operate the winch from inside without having to use the wireless remote every time. Simple addition but makes a real difference in usability when you need to move fast on a recovery.
Verdict: The Viper Midnight is highly regarded in the SxS community for a reason — solid build, proper waterproofing, and synthetic rope from the factory. The Motoalliance mount fits perfectly and the cab switch is a mod every UTV winch owner should do.
Full Viper Midnight Winch Review → Check current price on Viper Midnight 4500lb Winch → Check Motoalliance Winch Mount Plate for Pro XP →
Super ATV 6″ GDP Portal Gear Lift — 30% Reduction
This is the biggest and most impactful upgrade on my Pro XP4 build. Super ATV’s 6″ GDP Portal Gear Lift adds 6 inches of ground clearance and completely transforms what terrain the RZR can handle.
Portals work by relocating the axle above the wheel center, effectively lifting the entire machine without raising the center of gravity as dramatically as a traditional lift. The result is dramatically more ground clearance with better approach and departure angles.
The 30% vs 45% reduction decision: I went with the 30% reduction — and if I’m being honest, I’d probably go with the 45% reduction if I was buying today. Here’s why: I’m now wanting to run 38-40″ tires and the 45% reduction is better suited for that tire size. The 30% reduction works great with the current 36″ ITP Cryptids, but if you’re already planning to go bigger on tires, save yourself the upgrade cost down the road and go 45% from the start.
On the trail: The difference in ground clearance is immediately noticeable. Obstacles that used to require careful line selection now get cleared with confidence. The Pro XP4 feels like a completely different machine on rocky terrain.
Verdict: Portals are the single best upgrade you can make to a Polaris RZR Pro XP4 if you’re serious about trail performance. Go with the 45% reduction if you’re planning to run 38″ tires or larger.
Full Super ATV Portal Review → Check Super ATV 6″ GDP Portal Gear Lift for Pro XP →
36x10x18 ITP Cryptid Tires on 18×7 MSA M34 Flash Wheels
Rubber is everything on a side-by-side and the ITP Cryptid in 36x10x18 paired with the MSA M34 Flash wheels is a combination that looks great and performs even better.
The ITP Cryptid is an all-terrain tire built specifically for UTV applications — aggressive enough to bite in mud and loose terrain while still being manageable in harder packed conditions. The 36″ diameter pairs well with the Super ATV 6″ portals and gives the Pro XP4 the stance it deserves.
The MSA M34 Flash wheels in 18×7 are a clean, lightweight option that complement the aggressive tire profile without adding unnecessary weight.
Verdict: This tire and wheel combo is a solid choice for a Pro XP4 running Texas terrain — mud, rocks, and sand. If you’re planning to run portals, size up to at least 36″ — anything smaller looks undersized with 6″ of lift.
Check ITP Cryptid Tires → Check MSA M34 Flash Wheels →
Dual Battery Setup — Polaris Secondary Battery Kit + Isolator
Running lights, a winch, a front camera, overhead fans, and a voltmeter puts serious demand on a single battery. The dual battery setup is essential if you’re adding multiple electrical accessories to your Pro XP4.
What I used:
- Polaris Off Road Secondary Battery Install Kit (Part #2884347)
- 12V UTV Dual Battery Isolator Connect & Monitor Kit
Important note for Pro XP4 owners: The Polaris Secondary Battery Kit Part #2884347 is specifically designed for the 2-seat models. On the 2-seater both batteries sit under the driver’s seat. On the 4-seat Pro XP4 the first battery is under the driver’s seat and the second battery goes under the passenger seat — which means the cables in the kit are too short.
I had to make a trip to AutoZone to get longer cables to make it work in the 4-seater. If you’re handy with metal fabrication you can also make your own battery bracket using the stock strap as a template and save some money. Just know going in that this kit isn’t plug-and-play for the 4-seat model.
Verdict: A dual battery setup is essential for a well-built Pro XP4 with multiple accessories. Just be aware of the cable length issue on the 4-seater before you order.
Check Polaris Secondary Battery Install Kit → Check 12V Dual Battery Isolator Kit →
Kemimoto Dual 8″ RGB Overhead Cab Cooling Fans
Texas summers in a side-by-side are brutal. The Kemimoto Dual 8″ Large Cab Cooling Fan with RGB Halo Light helps — but this install came with a lesson learned.
The fitment issue: Read the product description carefully before ordering. The fan assembly is designed for roof widths of 41.3″ to 57″. The Pro XP4’s top roll bar width is around 34″ — which means this fan does NOT fit without modification.
Here’s what I had to do to make it work:
- Used a different roll bar mount than what came in the kit
- Added 3″ x 3″ x 1.5″ galvanized angle brackets to create a 3″ drop to clear the roof
- Trimmed approximately 1 to 1.5 inches off each end of the fan assembly to fit between the roll cage pillars
The fan assembly ends up at approximately 35.5″ wide after trimming — barely fits but it works.
Performance: Once installed it moves a serious amount of air. The RGB halo lights are a nice touch for night runs. Variable speed dial gives you full control over airflow.
Verdict: The Kemimoto fans work well once installed but require modification to fit the Pro XP4. If you’re not comfortable trimming and fabricating go find a UTV shop to do the install, or look for a fan specifically sized for the Pro XP4 roll cage width. I’d still do it again — just knowing what I know now I’d be prepared for the extra work.
Check Kemimoto Dual 8″ Cab Cooling Fan →
Nilight 18W LED Spot Lights + Tusk Light Bar Brackets
Lighting is essential for night trail runs and the Nilight 18W LED Spot Lights mounted on Tusk LED Light Bar Brackets give the Pro XP4 solid forward visibility without breaking the bank.
Tusk Light Bar Brackets for Polaris RZR Pro XP: The fit is excellent and the low-profile design keeps things clean looking. Same story as the winch mount — the powder coat is showing some peeling after heavy mud and sand use, but the structural integrity is solid.
Verdict: A solid budget lighting setup that gets the job done. If you want premium lighting look at Rigid Industries or Baja Designs — but for the price the Nilight and Tusk combo delivers solid performance.
Check Nilight 18W LED Spot Lights → Check Tusk LED Light Bar Brackets for Pro XP →
Kemimoto Front Camera Kit
The Kemimoto Front Camera Kit adds a forward-facing camera to your Pro XP4 — great for seeing what’s coming on tight trails and technical terrain where you can’t always see the ground ahead of your front wheels.
Installation is straightforward and the image quality is solid for a UTV application. Pairs well with the dual battery setup to make sure you have enough power for all your accessories running simultaneously.
Check Kemimoto Front Camera Kit →
Mictuning Dual Battery Voltmeter
With a dual battery setup you need to know the state of both batteries at all times. The Mictuning LED Digital Panel Double Voltmeter gives you real-time voltage readings for both batteries in a rocker switch style panel that integrates cleanly with your existing switch setup.
Simple install, accurate readings, and peace of mind knowing your batteries are healthy before you head deep into the trail.
Check Mictuning Dual Battery Voltmeter →
What’s Coming Next on This Build
I’m seriously considering upgrading to 38-40″ tires to take full advantage of the 6″ portal lift. The 45% reduction portals would have been the better choice for that tire size — something to keep in mind if you’re speccing your own build.
Stay tuned for individual deep-dive reviews on each of these mods as I put more trail miles on the Pro XP4.
Frequently Asked Questions
Will the Super ATV 6″ portals fit with 36″ tires on the Pro XP4? Yes — the 36x10x18 ITP Cryptid tires fit well with the 6″ GDP portals on the Pro XP4. If you’re planning to run 38-40″ tires, consider the 45% reduction over the 30% for better low-end torque and power management at larger tire sizes.
Does the Polaris Secondary Battery Kit work on the Pro XP4 Ultimate 4-seater? The kit (Part #2884347) is designed for the 2-seat model. It works on the 4-seater but the cables are too short — you’ll need to source longer cables separately. The battery locations are different: both batteries under the driver’s seat on the 2-seater vs. driver’s seat and passenger seat on the 4-seater.
Do the Kemimoto overhead fans fit the Pro XP4 without modification? No — the Pro XP4 roll bar width is approximately 34″ and the Kemimoto fans are designed for 41.3-57″ widths. Fitting them requires trimming the fan assembly ends and fabricating a mounting solution with a 3″ drop. It’s doable but plan for extra work.
Is the Viper Midnight winch waterproof enough for serious mud runs? Yes — the Viper Midnight Series is IP68 rated which means it’s fully sealed against water and dust immersion. For Texas mud and water crossings it’s held up well.
What tires should I run with 6″ portals on the Pro XP4? Minimum 35″ — anything smaller looks undersized with 6″ of lift. I’m running 36x10x18 ITP Cryptids which work great. If I were building again I’d spec the 45% reduction portals and plan for 38-40″ tires from the start.
The Bottom Line
The 2022 Polaris RZR Pro XP4 Ultimate is already an exceptional machine from the factory. The mods on this list take it further — more clearance, more power management, better visibility, and the ability to handle whatever Texas throws at it.
Every product on this page has been installed on my actual Pro XP4 and tested on real trails. No desk reviews here.
👉 Looking for more SxS content? Browse all SxS Reviews → 👉 Planning a Texas trail run? Check out our Trail Reports → 👉 Got questions about any of these mods? Reach out at jeff@trailtestedtx.com
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