If you’ve been in sim racing long enough, certain products stick with you. For me, the Sim Lab P1X was where it all started. Fast forward five years, countless upgrades, and a much deeper understanding of what actually matters in a high-end setup, and I’m right back where I began, building out the latest evolution, the P1X Ultimate.

This is part one of a full build series, and in this article, I’m walking through the entire process, from unboxing to final assembly, including first impressions, build experience, and overall quality. If you’re considering this cockpit for your own setup, this will give you a clear picture of what to expect.

Unboxing the P1X Ultimate

The P1X Ultimate arrives in four main boxes for the base cockpit, plus additional packaging if you opt for accessories. Right away, the presentation stands out. Everything is tightly packed, well-protected, and clearly labeled, which makes a big difference when you’re dealing with a build of this scale.

From the moment you pull out the first aluminum profile, it’s obvious where the money is going. The machining quality is excellent, the matte black powder coating is clean and consistent, and there are no visible imperfections. Compared to other rigs I’ve built, this immediately feels like a step up in finish and refinement.

The base structure uses 160 mm aluminum profiles, with 120 mm uprights. That puts it right at the top end of rigidity in the aluminum profile category, competing directly with rigs like the Next Level Racing Elite 160 and Trak Racer TR160.

At just under $1,000 for the cockpit alone, it sits in the premium category, but still feels competitively priced given the quality. This is very much a buy once, cry once type of purchase.

What I’m Running With This Build

For this setup, I’m pairing the P1X Ultimate with a full ecosystem of gear, some of which will be installed in the next part of the series. For now, the focus is on the cockpit itself, but here’s the general direction:

• Sim Lab cockpit and accessories
• Sim Lab pedals for testing and review (Simucube Active Pedals after...I love them too much!)
• Simucube 2 Pro as a temporary wheelbase
• Future upgrade to the Sim Lab DDS base
• Motion platform coming in Part 2
• All the haptics will be added in the final version (Sensit Seat Haptics, QS-BT1 Belt Tensioner) 

One of the biggest updates worth mentioning is that Sim-Lab now has a US store. That means faster shipping, no import headaches, and easier access overall. For US-based sim racers, that alone removes one of the biggest barriers that used to exist.

The Build Process

Step 1: Frame Assembly

The build starts with the base frame, which consists of four main aluminum profiles. This part is straightforward and sets the foundation for everything else.

Even though the components feel slightly lighter than some competing rigs, they are just as rigid once assembled. That balance between weight and strength is something Sim Lab has clearly refined over time.

A key tip here, skim the entire manual before starting. There are small details that can trip you up. For example, two pieces may look identical but differ slightly in length. In one case, a 10 mm difference matters for proper fitment with corner brackets.

Step 2: Pedal Deck

The pedal tray is quick to assemble and uses branded cap washers that add a nice premium touch. It’s a small detail, but it contributes to the overall perception of quality.

One minor issue I ran into here was tight threading on a few holes, likely due to paint inside the threads. It took some force to get the bolts in, but Sim Lab includes a thread cleanup tool, which solves the problem.

Once installed, the pedal deck feels solid and adjustable enough to accommodate different pedal sets and driving positions.

Step 3: Uprights and Wheel Mount Structure

Next up are the uprights, which attach using what Sim Lab calls sandwich plates. These allow for easy front-to-back adjustment, which is critical for dialing in your driving position.

Even though I didn’t install the wheelbase mount in this stage, the flexibility here is worth noting. Whether you’re running a front mount or a wheel deck, the system supports both configurations without compromise.

Step 4: Side Mount and Accessories

The side mount is where you’ll attach peripherals like a shifter or handbrake. This was probably the most complex part of the build, but even then, it was still relatively simple compared to other rigs.

Once everything is aligned and tightened down, the structure feels extremely solid. No flex, no weird angles, just a clean, functional design.

Installing the Seat

This is where the build really starts to come together visually.

The seat I’m using is the Sim Lab Speed 1, customized in a blue finish that completely transforms the look of the rig. Without it, the cockpit is very traditional, all matte black, very industrial. With the seat, it suddenly feels premium and personalized.

From a comfort standpoint, the seat is snug and supportive, which is exactly what you want for sim racing. You don’t want to be sliding around mid-corner.

One thing to note is that seat brackets and sliders are not included by default, so you’ll need to add those separately.

The slider mechanism requires a bit of adjustment out of the box. It comes narrower than expected and needs to be expanded to match your seat width. It’s not difficult, but it can be confusing if you’re not expecting it.

Once installed, though, this was actually one of the easiest seat installs I’ve done.

Accessories That Actually Matter

I added a few quality of life accessories that made a bigger difference than expected:

• Keyboard tray
• Mouse pad
• Cup holder

All of these mount using standard T-nuts and take just a few minutes to install.

The keyboard tray, in particular, is something I wish I had added years ago. Not having to reach down to the floor every time you need your keyboard is a small but meaningful upgrade.

At around $20 each, these are easy additions that improve the day-to-day experience of using your rig.

Freestanding Monitor Mount

For this build, I went with a freestanding monitor mount instead of an integrated one.

The main reason is future compatibility with motion. If you’re planning to run a motion platform, a freestanding mount is almost always the better choice since it isolates the screen from the movement of the rig.

The build process for the mount was surprisingly smooth. Alignment, which is usually a pain point with monitor mounts, was straightforward and hassle-free.

I’ll be running a 57 inch ultrawide on this setup, so having a stable and adjustable mount is critical.

Build Time and Difficulty

From start to finish, the entire build took about four hours.

That’s significantly faster than my experience with the original P1X, which took closer to two days. The difference comes down to improved design, better instructions, and a more refined parts system.

This is one of the biggest takeaways from this build. Sim Lab has clearly evolved their product, not just in quality, but in usability.

What Stands Out

Build Quality

This is easily one of the highest quality rigs I’ve assembled.

• Clean machining
• Durable powder coating
• Tight tolerances
• Minimal imperfections

Everything fits the way it should. There’s no forcing parts into place or dealing with misalignment.

Ease of Assembly

For a rig at this level, the assembly process is surprisingly approachable.

There are a few minor frustrations, like unlabeled hardware or the lack of included tools, but overall, it’s a smooth experience.

Design and Aesthetics

On its own, the P1X Ultimate is a very traditional aluminum profile rig. It’s clean, minimal, and functional.

Where it really comes alive is with customization, especially the seat. The color, shape, and detailing of the seat completely change the visual impact of the setup.

Final Thoughts on Part 1

After completing the base build, one thing is clear. The P1X Ultimate lives up to the reputation that Sim Lab has built over the years.

This is a refined, high-quality cockpit that improves on the original P1X in meaningful ways. It’s easier to build, better finished, and just as solid where it matters.

There are a few small areas for improvement, like hardware labeling and included tools, but these are minor compared to the overall experience.

The real test will come in Part 2, where I install the full set of gear and add a motion platform. That’s where rigidity, stability, and real-world performance will truly show.

But as a foundation, this is about as good as it gets.

If you’re building a high-end sim racing setup and want something that you won’t outgrow, the P1X Ultimate should absolutely be on your shortlist.