If you're looking to upgrade your Fox Body Mustang's rear brakes, let me tell you about the SS4 brake system. This isn't just any setup; it's got the S4 4-piston calipers paired with a beefy 12-inch one-piece rotor that’s been slotted and drilled for better cooling and performance. The rotor is zinc plated too, which means it'll resist rust better than your average part. Plus, the billet backing plate is a game changer. It not only mounts the caliper securely but also houses this slick Banksia park brake assembly. Trust me, this is a much more effective setup compared to those old-school drum-in-hat systems that can be a pain to deal with.

Now, just a heads up, this is designed to fit 1991-1993 Saleen Fox Body Mustangs that have 5-lug wheels. So if you're rocking something else, you might want to double-check compatibility. And don't forget, park brake cables aren't included, so make sure to grab those if you need them.

What makes the SS4 stand out? For starters, the 12-inch directionally vaned rotor not only looks great but performs like a champ, especially when paired with the Track4 front brake system. The fully machined billet backing plate is a work of art, and it really enhances the overall feel of your braking system. The Banksia park brake is a modern take on the classic design, using the same shoe as the later Corvette C5/C6 models, which is pretty neat.

Everything you need comes in the box—hoses, fittings, and hardware. And those 12-inch rotors? They fit in some 15-inch and most 16-inch wheels, but it’s a good idea to check with a template just to be safe.

As for the S4 calipers, they’re built to last. With four 10mm cross bolts for maximum stiffness, stainless steel abutments, and noise suppression springs, these calipers are designed to perform under pressure. The hard anodized aluminum pistons are tough, and the internal crossover design helps with fluid dynamics. Plus, they’ve got dual seals to keep out dust and weather, meeting all D.O.T. specs.

The calipers come in a striking red powder coat finish, but if you want something different, you can opt for black, silver, or even custom colors. And they’re not just for the rear; you can get them for the front too, so your ride can have that cohesive look. All of this is proudly made right here in the USA with materials sourced locally.

So if you’re ready to take your braking game to the next level, the SS4 system is worth considering. It’s reliable, modern, and built for performance—just like your Mustang should be.