If you're serious about drag racing, you know that every little detail counts. This rear brake system is built for the hardcore racers out there. We're talking about four S4 4-piston calipers paired with 11-inch x 1-inch directional rotors that are not just any rotors—they're 2-piece, slotted, drilled, and zinc plated. This setup is made for those heavy, fast drag cars that need reliable brakes to launch and stage effectively.

Now, before you jump in, keep in mind that this system is tailored to specific housing ends. If you’re unsure about what you’ve got, don’t hesitate to reach out for help. We’ve got images to help you identify your setup, so you can get it right the first time. Also, a heads up: you’ll need to turn down your axle flange to 5.75 inches for this system to fit properly.

We offer these systems with different piston sizes. The larger 1.75-inch pistons give you maximum clamping force, but they can lead to a longer pedal feel due to their volume requirements. If you're looking for something that works well in classes like NMRA True Street, check out the smaller 1.375-inch piston option. It’s been a hit for cars that see limited street use, but remember—these are designed strictly for racing. If you do take them on the street, make sure to adjust your brake bias accordingly.

One more thing: this system comes with high-friction pads specifically made for drag racing. Just a fair warning, they tend to produce a bit more dust and noise than your typical pads.

Fitment:

• Compatible with GM 10 Bolt and 12 Bolt with Ford 3.150 Inch Bearing Ends
• Rotors drilled for 5/8 studs with 11/16 holes for 5 x 4.50 Inch and 5 x 4.75 Inch wheel bolt patterns
• Axle flange needs to be 5.75 inches
• Rotor register should be 2.780 inches

Why consider the SS4+ Deep Stage Drag Race Systems?

• You get all the advantages of our larger brake systems, but in a compact package that fits 15-inch wheels.
• It’s compatible with most dual beadlock wheels.
• Designed specifically for heavy, fast cars—no fluff here.
• Can be street-driven, but just keep an eye on that brake bias.
• Made from 6061 T-6 billet aluminum, anodized black, and bolted to the rotor for durability.
• High-grade U281 fine thread stainless hardware with captured nuts ensures everything stays tight.

Check out 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 durability.
• Internal crossover design for better performance.
• Dual seals to meet D.O.T. specifications—dust, weather, and pressure resistant.
• Each caliper sports a machined logo that’s hand-painted for that personal touch.
• Uses a common 4-piston pad for easy replacements (P/N DR1).
• Available in a clear powder coat finish, with standard colors like Clear and Fire Red, plus custom options.
• Available for both front and rear, so you can keep that matching look.
• Uses the right banjo style fittings—no pipe thread nonsense here.
• 100% made in the USA with materials sourced right here at home!

So if you’re ready to step up your drag game, this 11-inch rear SS4+ Deep Stage 4-Caliper brake system is the way to go. Trust me, you won’t regret it!