If you're diving into the world of drag racing, you know that every detail counts, especially when it comes to your brakes. This rear brake system is built specifically for those who live for the launch and the stage. We’re talking about a serious setup here: four S4 4-piston calipers paired with 11-inch x 1-inch directional rotors that are not just drilled, but also zinc plated for durability. This isn't just any brake system; it's designed for heavy, fast drag cars that need reliable stopping power when it matters most.

Now, before you dive in, let’s talk fitment. This system is tailored for a Ford 9-inch with small bearing housing ends and a standoff of 2.50 inches. One crucial thing to remember is that your axle flange needs to be turned down to 5.75 inches to make this all work smoothly. If you're unsure about your setup, shoot us a message or check out the images we’ve provided to help identify what you’re working with.

When it comes to piston sizes, you’ve got options. The larger 1.75-inch pistons give you maximum clamping force, but they can lead to long pedal travel due to their volume requirements. If you’re running in classes like NMRA True Street, you might want to consider the smaller 1.375-inch pistons, which have been a hit for those cars that see limited street time. Just a heads up: these systems are meant for racing. If you decide to take them on the street, you’ll need to adjust your brake bias to keep everything in check.

One thing you’ll notice right away is the high-friction pads that come with this system. They’re optimized for drag racing, which means they might kick up a bit more dust and noise than your typical street pads. But hey, that’s the trade-off for performance, right?

• Designed specifically for Ford 9-inch with small bearing housing ends and a 2.50-inch standoff.
• Rotors are drilled for 5/8 studs and have 11/16 holes for both 5 x 4.50 and 5 x 4.75 wheel bolt patterns.
• Make sure your axle flange is 5.75 inches for a proper fit.
• Rotor register needs to be 2.780 inches.

So, why should you consider the SS4+ Deep Stage Drag Race Systems? Well, it’s all about getting the benefits of our larger brake systems in a compact package that fits 15-inch wheels. Plus, it works with most dual beadlock wheels, which is a big deal for heavy, fast cars. And yes, you can even use it on the street if you adjust your setup right.

• Crafted from 6061 T-6 billet aluminum, anodized black, and bolted to the rotor.
• High-grade U281 fine thread stainless hardware with captured nuts for added durability.

Let’s not forget the S4 caliper features:

• Four 10mm cross bolts for maximum stiffness.
• Stainless steel abutments and noise suppression springs to keep things quiet.
• Hard anodized aluminum pistons for longevity.
• Internal crossover design for improved performance.
• Dual seals to meet D.O.T. specifications, keeping dust and weather at bay.
• Hand-painted machined logo for that extra touch.
• Uses a common 4-piston pad (P/N DR1) for easy replacements.
• Available in Fire Red powder coat finish, with custom colors if you want to stand out.
• 100% MADE IN USA with materials sourced right here at home!

In short, if you’re serious about drag racing and need a brake system that can handle the heat, this setup is worth a look. It’s built tough, fits well, and will keep you stopping on a dime when you need it most.