If you're looking to stiffen up your chassis, the s2000 cusco roll bar is usually the first name that pops up in forum threads and track day pits. It's one of those iconic modifications that changes the whole vibe of the car, shifting it from a fun weekend cruiser to something that looks like it actually belongs on a circuit. But before you go out and drop a few hundred bucks on a big blue hunk of metal, there's a lot to consider regarding which version you need and what it's actually going to do for your AP1 or AP2.
Why Cusco Is the Go-To Choice
Honestly, the S2000 community has a bit of a love affair with Cusco. Part of it is the heritage—Cusco is JDM royalty. When you see that specific shade of "Cusco Blue" peeking through a rear window, you know the owner cares about the details. But beyond the aesthetics, these bars are popular because they actually fit. There are a lot of "universal" or knock-off bars out there that require you to hammer your floorboards into submission, but the Cusco units are designed specifically for the S2000's tight cabin constraints.
Cusco offers two main lines: the standard Cusco Blue (usually made of Chromoly) and the Safety 21 line (usually black steel). If you're looking to save weight, the Chromoly version is the way to go. It's lighter than the steel version but offers plenty of rigidity. On the flip side, the Safety 21 steel bars are often a bit cheaper and are favored by people who aren't as obsessed with every single ounce of weight savings.
Understanding the Different "Points"
When you start shopping for an s2000 cusco roll bar, you'll see options for 4-point, 5-point, and 6-point configurations. If you're new to this, it can feel a bit overwhelming, but it's actually pretty straightforward.
The 4-Point Setup
This is the most common choice for street-driven S2000s. It mounts behind the seats and attaches to the main floor and the rear wheel arches. It gives you a nice bump in chassis stiffness without making the car impossible to live with. You still have access to most of your interior, and it doesn't interfere with your legs when you're getting in and out.
The 5-Point and 6-Point Options
These add more bars that run forward into the footwells. While these offer even more protection and rigidity, they're a much bigger commitment. A 6-point bar is going to make getting into an S2000—a car that's already hard to exit gracefully—feel like a gymnastics routine. Plus, having a metal bar running right next to your knee on the street can be a bit sketchy if you aren't wearing a helmet.
The Chassis Stiffness Factor
We all love the S2000 for its high-revving engine and sharp steering, but let's be real: it's a convertible from the late 90s/early 2000s. It has some flex. If you've ever driven over a set of railroad tracks and felt the rearview mirror vibrate, that's cowl shake.
Installing an s2000 cusco roll bar ties the middle of the car to the rear suspension pick-up points. The result? The car feels much more "one-piece." When you turn into a corner, the back end follows the front end more predictably. It's not just about safety; it's about making the suspension do its job instead of letting the frame of the car twist.
The "Street Safety" Debate
I have to mention this because it's the biggest point of contention in the community. There's a long-standing debate about putting a roll bar in a street car. The logic is that in a street accident (where you aren't wearing a helmet), your head could hit the metal bar.
If you're going this route, bar padding is non-negotiable. Cusco sells specific foam padding that matches the bar, and you should definitely use it. Also, think about your height. If you're 6'3" and your head is already poking above the roll hoops, a roll bar might be uncomfortably close to your skull. For average-height drivers, there's usually plenty of clearance, but it's something you've got to check for yourself.
Installation: Expect Some Surgery
Installing an s2000 cusco roll bar isn't exactly a "bolt-in and go" project that you can finish in twenty minutes. It's a weekend job, and you're going to need a second set of hands.
The hardest part isn't the bolting; it's the interior. The S2000 has a lot of plastic cladding behind the seats and around the fuel tank area. To get the bar to sit flush against the metal of the car, you're going to have to trim these plastics. If you're a perfectionist, this can be nerve-wracking. You'll be using a Dremel or a saw to cut notches into your interior panels.
The good news is that if you take your time, it can look totally factory. But if you rush it, you'll end up with jagged edges and gaps that'll annoy you every time you look in the rearview mirror. Also, keep in mind that you'll likely lose the use of the secret compartment (the little glove box between the seats) or at least find it much harder to open depending on which bar you choose.
Does the Soft Top Still Work?
This is the number one question people ask. Yes, the s2000 cusco roll bar is designed to clear the factory soft top. It's a tight fit, though. When you're raising or lowering the top, you might notice it brushes against the bar slightly.
If you have an aftermarket glass window on an early AP1, you'll want to double-check the clearances. The glass windows are a bit larger than the original plastic ones, and sometimes they can get caught on the diagonal brace of the roll bar. Most people don't have issues, but it's one of those "measure twice, buy once" situations.
Hardtop Compatibility
If you're running an OEM or Mugen-style hardtop, the Cusco bar usually fits like a glove. In fact, many people think the car looks its best with a roll bar sitting just under the glass of a hardtop. It fills out the empty space in the cabin and gives the car a very aggressive, purposeful stance.
Weight Trade-offs
Let's talk about weight for a second. The S2000 is a fairly light car, and adding 30 to 50 pounds of steel or chromoly might seem counterintuitive. However, the trade-off in chassis rigidity usually outweighs the penalty of the extra pounds. Unless you're competing in a class where every millisecond counts, you probably won't notice the weight, but you will notice how much more planted the car feels in high-speed sweepers.
Final Thoughts: Is It Worth It?
At the end of the day, an s2000 cusco roll bar is one of those mods that you do for two reasons: you want to be safer at the track, or you want that aggressive JDM look. Most S2000 owners fall somewhere in the middle.
It's a significant project that requires some permanent "massaging" of your interior plastics, but the payoff is a car that feels tighter, looks better, and offers a bit more peace of mind when you're pushing it to the limit. Just make sure you get the padding, take your time with the install, and maybe warn your passenger that getting into the car just got a little more "athletic."
If you're tired of the chassis flex and want to give your S2K some extra backbone, you really can't go wrong with Cusco. It's a classic choice for a reason. Don't forget to check your local track's regulations, though—some organizations have very specific rules about which bars they allow, so always verify before you buy. Happy driving!