Alright, let’s dive into the nitty-gritty of this drag race brake system. If you're serious about hitting the strip, the SS4+ Deep Stage setup is built for you. We’re talking about four S4 4-piston calipers paired with 11-inch x 1-inch directional rotors. These aren’t just any rotors—they're two-piece, slotted, drilled, and zinc-plated for that extra durability when you're launching hard. This setup is specifically tailored for heavy, fast drag cars that need reliable brakes for staging and launching. Just a heads up: you’ll need to turn down your axle flange to 5.75 inches for everything to fit right. If you’re unsure about what you’ve got going on with your housing ends, shoot us a message, and we’ll help you figure it out.

Now, let’s talk about the pistons. You’ve got options here. The larger 1.75-inch piston gives you maximum clamping force, but be warned—it can lead to a longer pedal feel because of the volume it requires. If you’re looking for something that balances power and pedal response, the smaller 1.375-inch piston has been a hit in classes like NMRA True Street, where you might be driving on the street a bit. Just remember, these rear systems are strictly for racing. If you decide to take them on the street, make sure to adjust your brake bias properly.

Quick Note: This kit comes with high-friction pads that are optimized for drag racing. They do tend to kick up a bit more dust and noise, so keep that in mind.

Fitment specifics:

• Designed for use with Ford 9-inch rear ends featuring Torino housing ends with a 2.5-inch standoff.
• Rotors are drilled for 5 x 4.50-inch and 5 x 4.75-inch wheel bolt patterns.
• Your axle flange needs to be 5.75 inches.
• Rotor register should be at 2.780 inches.

Why go for the SS4+ Deep Stage Drag Race Systems?

• All the benefits of our larger brake systems, just in a compact design that fits 15-inch wheels.
• Compatible with most dual beadlock wheels.
• Engineered specifically for heavy, fast cars—because you need brakes that can keep up.
• Can be street-driven, but remember to adjust for brake bias.
• Crafted from 6061 T-6 billet aluminum, anodized black, and bolted to the rotor for strength.
• High-grade U281 fine thread stainless hardware with captured nuts for reliability.

Features of the S4 Caliper:

• Four 10mm cross bolts for added stiffness—no flexing here.
• Stainless steel abutments and noise suppression springs to keep things quiet.
• Hard anodized aluminum pistons for durability.
• Internal crossover design for efficient fluid flow.
• Dual seals that meet D.O.T. specs for dust, weather, and pressure resistance.
• Each caliper features a machined logo that’s hand-painted for a personal touch.
• Uses a common 4-piston pad for easy replacements (P/N DR1).
• Clear powder coat finish available in standard colors like Clear and Fire Red—custom colors? We got you.
• Available for front or rear to keep that aesthetic consistent.
• Utilizes the correct banjo style fittings—no pipe threads here, just quality.
• 100% MADE IN THE USA with materials sourced right here!